The most valuable things in life are not measured in monetary terms. The really important things are not houses and lands, stocks and bonds, automobiles and real state, but friendships, trust, confidence, empathy, mercy, love and faith.

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Nothing is so exhausting as indecision, and nothing is so futile.

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

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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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The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd.

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Why repeat the old errors, if there are so many new errors to commit?

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

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

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Not to be absolutely certain is, I think, one of the essential things in rationality.

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