What the genetic epistemology proposes is discovering the roots of the different varieties of knowledge, since its elementary forms, following to the next levels, including also the scientific knowledge.

During the earliest stages the child perceives things like a solipsist who is unaware of himself as subject and is familiar only with his own actions.

To understand is to invent.

What we see changes what we know. What we know changes what we see.

I could not think without writing.

When you teach a child something you take away forever his chance of discovering it for himself.

Experience precedes understanding.