行为不仅仅是对刺激的反应，而是由期望和目的引导的。

Positive emotions are not trivial luxuries, but instead may be critical necessities for optimal functioning.

世界上最好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.

If you're changing the world, you're working on important things. You're excited to get up in the morning.

我不需要任何人的认可来知道自己的价值。