Logic and mathematics are nothing but specialised linguistic structures.

Scientific thought, then, is not momentary; it is not a static instance; it is a process.

Only education is capable of saving our societies from possible collapse, whether violent, or gradual.

Knowing reality means constructing systems of transformations that correspond, more or less adequately, to reality.

Each time one prematurely teaches a child something he could have discovered himself, that child is kept from inventing it and consequently from understanding it completely.

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.

How much more precious is a little humanity than all the rules in the world.