A method of solution is perfect if we can foresee from the start, and even prove, that following that method we shall attain our aim.

Every equation we write is a poem of the universe, a verse in the grand epic of existence.

你隐藏得越多，他们寻找得越多。

如果我们明智地使用技术，它可以成为林业最伟大的盟友。

交易中最重要的是纪律。