所有人都很害羞。别人在等着你介绍自己，等着你给他们发邮件，等着你邀请他们约会。干就完了。
Everyone is shy. Other people are waiting for you to introduce yourself to them， they are waiting for you to send them an email， they are waiting for you to ask them on a date. Go ahead.
Don't be embarrassed by your failures, learn from them and start again.
量子力学不仅是一种理论，而且是一种关于自然的新思维方式。
龙到浅水里会遭虾戏弄，虎落平原狗都会去欺负。
The duty of a true patriot is to protect his country from its government.