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The key to successful investing is to have a clear understanding of the risks and rewards.

I don't need a reason to be grateful.

Theorems are the permanent literature of mathematics.

Psychology must study the adaptive functions of thought and behavior.

Every effort is an investment in the future, a wisdom understood by the wise.

Mathematics is a conversation between the past and the future.

我們對野生動物的愛與對人類之愛有著天壤之別。