I don’t think you can compare different eras. Every era has its own challenges and its own special things.
The more you are interested in others， the more interesting they find you. To be interesting， be interested.
化学的美妙之处在于它无处不在——你只需要去发现它。
小于给定数的素数个数是该数的一个函数。
我喜欢跨越人们在各个领域之间设置的想象边界——这非常令人耳目一新。
Language is a process of free creation; its laws and principles are fixed, but the manner in which the principles of generation are used is free and infinitely varied.
