人心是复杂且常常矛盾的。

The beauty of astronomy lies in its ability to connect us to the vastness of the cosmos.

Freedom of use is the most important quality of space.

The iron rule of nature is: you get what you reward for. If you want ants to come, you put sugar on the floor.

The most profound ideas in mathematics often come from asking the simplest questions.

机会或许是上帝不愿签名时所用的化名。