更好从来不是对每个人都更好……对某些人来说，它总是意味着更糟。
Better never means better for everyone... It always means worse, for some.
The value of a mental process lies not in its composition, but in its consequences for survival and flourishing.
——辛格1978年诺贝尔文学奖获奖演说
"The beauty of science lies in its ability to reveal the unknown."
能消除将要发生的事，遇到事情而能做弥补，事情发生后能挽救，这叫做达权，有才干。知道将来的事，做事有始有终，已成的事能知其中的变化，这叫做深思熟虑、有见识。