The only purpose for which power can be rightfully exercised over any member of a civilized community, against his will, is to prevent harm to others.
The only limit to our realization of tomorrow is our doubts of today.
如果你害怕失败,那意味着你已经输了。
Twenty years from now, you will be more disappointed by the things you didn’t do than the ones you did.So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover. (注:这句说话被部分人质疑不是由马克·吐温所说的。)