We must embrace change and challenge ourselves to think differently.

People of the same trade seldom meet together， even for merriment and diversion， but the conversation ends in a conspiracy against the public， or in some contrivance to raise prices.

数学不是观赏性运动——你必须参与其中才能欣赏它的美。

——赫尔曼·梅尔维尔

你的雪无法融化是因为我。