可持续性不是一个选择;它是我们对后代的责任。
The past is hidden somewhere outside the realm, beyond the reach of intellect, in some material object (in the sensation which that material object will give us) which we do not suspect.
Happiness comes from between. It is not something that you can find, acquire, or achieve directly. You have to get the conditions right and then wait.
性能的关键在于优雅,而不是大量的特殊情况。