Don’t create things to make money； make money so you can create things. The reward for good work is more work.
The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.
Overfishing is a crime against future generations.
Liberty is the right of doing whatever laws permit.
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
向一个人展示他在错误中是一回事，让他掌握真理是另一回事。