Authors :

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

Jean Piaget Quote

Scientific knowledge is in perpetual evolution it finds itself changed from one day to the next.

– Jean Piaget

[ More quotes by Jean Piaget ]

☰

×

Popular

Browse Popular Topics