Reinforcement is the central factor in the acquisition of new behavior patterns.

The most profound question is not about the existence of God, but about the existence of the world.

The greatest happiness of life is the conviction that we are loved; loved for ourselves, or rather, loved in spite of ourselves.

我对成为名人没有任何兴趣。我只想成为一名演员。

I've always been drawn to characters who are complex and flawed, because that's what makes them human.

林业实践的创新是平衡经济增长和环境保护的关键。