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  • Portrait of a dignified senior Western European man in his sixties with a serious look

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  • Kind als Schutzengel mit Heiligenschein

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  • Afrikanischer Junge steht mit Kreide vor Tafel

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  • Frau hält Konzept für Profit auf Tafel

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  • Smiling Australian businessman in suit against green background

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  • Junge vor Tafel hat Idee

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  • Person analyzing complex flowchart on a chalkboard

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  • Native American man in 60s, grey hair, green theme, focused

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  • Confident Eastern European woman in her 60s posing elegantly with a calm expression in a soft pink blouse

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  • Mädchen sucht nach Lösung für Problem

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  • Viele Pfeile zeigen auf Kind in Schule

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  • Kind hat Idee vor Glühbirne

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  • Senior as teacher with chalkboard

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  • Geschäftsmann zeigt auf leere Tafel

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  • Portrait of a determined senior man in his late 60s wearing a brown vest and striped tie against a dark background

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  • Child as a student with muscles on blackboard

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  • Hand malt Linie auf Tafel mit Kreide

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  • Senior woman as teacher with chalkboard

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  • Dozentin bei einer Präsentation am Whiteboard

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  • Lecturer writes a formula on the whiteboard

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  • Kind als Handwerker jongliert Werkzeug

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  • Kind feiert Ferien in Schule vor Tafel

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  • Portrait of a young man in a stylish shirt with a confident look

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  • Boy standing in front of empty chalkboard

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  • Mädchen in Grundschule mit Muskeln auf Tafel

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  • Seniorin als kompetente Dozentin

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  • Radiant African American woman in her sixties enjoying a joyful moment on a teal background

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  • Asiatisches Kind beim Nachdenken

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  • Confident South African entrepreneur in casual attire standing against a textured background

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  • Geschäftsmann hält leere Tafel

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  • Lehrerin vor Tafel mit Heft und Stift

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  • Poised senior man, 60s, slicked-back hair in green studio

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  • Thumbs up vor Tafel

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  • Ältere Frau als kompetenter Mathelehrer

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  • Mädchen hat Idee vor Glühbirne

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  • Smiling african girl in school

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  • Glückliches Kind vor Tafel in Schule

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  • Business woman rests her face on her hands

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  • Mädchen als Schüler in Siegerpose

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  • Woman with light bulb and question marks on chalkboard background

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  • Asian woman in 80s, white hair, grey color theme

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  • Kind beim Nachdenken vor Tafel

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  • Afrikanisches Mädchen beim Nachdenken

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  • Lachendes Kind mit Gedankenblase

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  • Chinese entrepreneur in 20s, black hair, dark green theme

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  • Geschäftsmann überprüft Customer Satisfaction

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  • Schüler an der leeren Tafel der Grundschule

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  • Schüler in Schule vor Tafel mit Doktorhut

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  • Confident Hispanic man in 40s, grey hair, business suit

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  • Man analyzing flowchart on blackboard for business strategy or project planning

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  • Reflective young man, early 20s, with curly hair in a vest

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  • Confident businesswoman in her mid-60s with short gray hair wearing a silk shirt and pearls on a dark background

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  • Confident young Central European woman with stylish bob haircut

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  • Zeit für Veränderung

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  • Junge hat Idee vor Glühbirne

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  • Scientist at the whiteboard in a lecture

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  • Mädchen löst Rechenaufgabe an Tafel

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  • Afrikanisches Mädchen vor Tafel mit Muskeln

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  • Sympathischer Business Mann sitzt auf Stuhl

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  • Cartoon Matrose oder Seemann hält Schild

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  • Teacher with math problem on chalkboard

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  • Mädchen steht nachdenklich vor Tafel

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  • Israeli businessman in 50s, gray hair, black suit

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  • Unternehmer zeigt Marktanalyse

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