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You can't let praise or criticism get to you. It's a weakness to get caught up in either one.

Every mental state exists for a purpose; to understand it, we must ask what function it serves in the broader system of behavior.

The truth is, we all have our own version of reality, and sometimes it's hard to reconcile the two.

The wound is the place where the Light enters you.

Civilization as it is known today could not have evolved, nor can it survive, without an adequate food supply.

要理解知覺，研究其在適應中的作用。

真正的競爭力不是價格，而是價值。

The notion of truth is not definable in any formal system that is strong enough to include arithmetic.

Structures should grow, not be imposed.