Mark Twain
(page 3)
Do something every day that you don't want to do; this is the golden rule for acquiring the habit of doing your duty without pain.
Education: that which reveals to the wise, and conceals from the stupid, the vast limits of their knowledge.
It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt.
Giving up smoking is the easiest thing in the world. I know because I've done it thousands of times.
There are basically two types of people. People who accomplish things, and people who claim to have accomplished things. The first group is less crowded.
Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.
In religion and politics, people's beliefs and convictions are in almost every case gotten at second hand, and without examination.