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La morale est la faiblesse de la cervelle.

"A child who reads will never be bored."

The mind is a complex of processes, not a thing.

Walls define space, but openings connect it to the world.

The truth is not always the easiest thing to believe.

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

人不應懼怕死亡，而應懼怕從未開始生活。