We must face reality, even if it is cruel.
我不迷信，但我有点小迷信。
We have a responsibility to future generations to leave the planet in better shape than we found it.
Parental investment is the key to understanding sex differences in mating strategies.
The sublimity of administration consists in knowing the proper degree of power that should be exerted on different occasions.
If you're an artist, you try to make sense out of one thing or another.
The ultimate aim of artificial intelligence is to make computers do things that would require intelligence if done by humans.