Nature tends to produce constancy in all her works, but she does not always succeed.
If you want to stand out, you have to be willing to be different.
花开时可以折取就要及时折取,不要等到花谢了只能折取空枝。
灵魂的快乐在于行动。
The beauty of mathematics lies in its ability to simplify complex problems.
The only way to tell the truth is to speak with kindness. Only the words of a loving man can be heard.