The more you know who you are, the less you let things upset you.

Free education is abundant, all over the Internet. It's the desire to learn that's scarce.

成功的最好方式是做你自己。

如果物体处于静止状态或作匀速直线运动，只要没有外力作用，物体将保持静止状态或匀速直线运动状态。

【释义】读书不要拘泥于书上或迷信书，应该加以分析，辨证地去看问题。