"But, if you observe children learning in their first few years of life, you can see that they can and do learn on their own - we leave them alone to crawl, walk, talk, and gain control over their bodies. It happens without much help from parents"
"Life is life - whether in a cat, or dog or man. There is no difference there between a cat or a man. The idea of difference is a human conception for man's own advantage"
"Raising children is an incredibly hard and risky business in which no cumulative wisdom is gained: each generation repeats the mistakes the previous one made"