Umar Johnson, 51

1

Jean Piaget (1896-1980)

2

Adam Grant, 44

3

Esther Perel, 67

4

Ian Oswald (1929-2012)

5

Brian Macwhinney, 80

6

James J. Jenkins (1923-2012)

7

Sarah Pendrick, 37

8

Dr. Tracy Dalgleish, 41

9

Antonio Borrello, 55

10