To understand is to invent.
Comprendre, c'est inventer.

Psychologists
Jean Piaget
Swiss developmental psychologist (1896-1980). A malacologist who turned to cognition while scoring Binet tests, his four-stage theory made him the 20th century's second most cited psychologist.
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Jean Piaget's Other Quotes
Education, for most people, means trying to lead the child to resemble the typical adult of his society... but for me, education means making creators. You have to make inventors, innovators, not conformists.
Only education is capable of saving our societies from possible collapse, whether violent, or gradual.
Intelligence is not what you know but what you do when you don't know.
When you teach a child something, you forever take away from him the pleasure and benefit of discovering it for himself.
Related Quotes
It is hard to retain what you learn unless you practice it.
-- Seneca
All things are ungraspable.
-- Pyrrho
Color exists by convention, sweet by convention, bitter by convention; in reality there are only atoms and void.
-- Democritus
I know that I know nothing.
-- Socrates
You must learn all things: both the steadfast heart of well-rounded Truth and the opinions of mortals, in which there is no true trust.
-- Parmenides
For thinking and Being are the same.
-- Parmenides