Punishment renders autonomy of conscience impossible.

I could not think without writing.

I have always detested any departure from reality, an attitude which I relate to my mother's poor mental health.

Children have real understanding only of that which they invent themselves, and each time that we try to teach them too quickly, we keep them from reinventing it themselves.

Logical positivists have never taken psychology into account in their epistemology, but they affirm that logical beings and mathematical beings are nothing but linguistic structures.

Play is the answer to how anything new comes about.

Education, for most people, means trying to lead the child to resemble the typical adult of his society . . . but for me and no one else, education means making creators. . . . You have to make inventors, innovators...not conformists