The best way to be happy is to love yourself.
The secret to living is giving.
The Internet is a great equalizer, but it also has the potential to exacerbate inequalities.
A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else. Men’s happiness or misery is most part of their own making. He, whose mind directs not wisely, will never take the right way; and he, whose body is crazy and feeble, will never be able to advance in it.
全息原理表明，空间体积中的信息可以被认为是在该空间的边界上编码的。