When you want to teach children to think, you begin by treating them seriously when they are little, giving them responsibilities, talking to them candidly, providing privacy and solitude for them, and making them readers and thinkers of significant thoughts from the beginning. That’s if you want to teach them to think.

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Men are born ignorant, not stupid. They are made stupid by education.

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Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom.

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The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

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My first advice (on how not to grow old) would be to choose you ancestors carefully.

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If an opinion contrary to your own makes you angry, that is a sign that you are subconsciously aware of having no good reason for thinking as you do.

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We know too much and feel too little. At least, we feel too little of those creative emotions from which a good life springs.

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The key to happiness is accepting one unpleasant reality every day.

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No rules, however wise, are a substitute for affection and tact.

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The time you enjoy wasting is not wasted time.

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