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I compare human life to a large mansion of many apartments, two of which I can only describe, the doors of the rest being as yet shut upon me

As I grow older, I pay less attention to what men say. I just watch what they do

The chief object of education is not to learn things but to unlearn things

To be a teacher in the right sense is to be a learner. I am not a teacher, only a fellow student

There is frequently more to be learned from the unexpected questions of a child than the discourses of men, who talk in a road, according to the notions they have borrowed and the prejudices of their education.

One can only learn his powers of action by action, and his powers of thought by thinking