天下都变成了秋天的气象，一个房间难以维持春天的温暖。

The beauty of mathematics lies in its ability to describe the universe in the most elegant way possible.

The most credible empirical research often comes from studies that have a clear and transparent design, where the assumptions are laid out for everyone to see.

The most hateful torment for men is to have knowledge of everything but power over nothing.

The past is not dead. It is not even past.

I always try to stay focused on the present moment.

幸福就是珍惜小事。