Sustainability isn't an option; it's a responsibility we all share.

We wish to discuss a structure for salt of deoxyribose nucleic acid. This structure has novel features which are of considerable biological interest.

To understand psychology, observe behavior in its natural context.

城市是其人民的集体记忆，与记忆一样，它与物体和地方相关联。

Memory is a responsibility, not a burden.

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.