The more constraints one imposes, the more one frees oneself.

Sustainability isn’t an option; it’s a responsibility we owe to future generations.

The evidence seems to favor the view that the fundamental structure of the virus is a hollow tube.

释义：圣人不会看重一尺长的美玉，却珍惜每一寸光阴。

思考的过程不仅仅是把一件事加到另一件事上；它在于观察结构特征和结构要求的操作。

The golden rule is that there are no golden rules.