A wise man said: before you speak， let your words pass through three gates. At the first gate， ask yourself， "Is it true？" At the second gate， ask "Is it necessary？" At the third gate， ask， "Is it kind？"
我认为这很少是关于你在课堂上学到的东西——它主要是关于你问自己的问题。
Don't wait for the perfect moment. Take the moment and make it perfect.