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Anxiety is the dizziness of freedom.

I don't believe in luck. I believe in preparation meeting opportunity.

When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become.

水是生命之源，也是毀滅之力。

The only way to change behavior is through manipulation of reinforcement contingencies.

我擁抱挑戰，因為它們讓我更強大。