1. Many lucky people only discover themselves when they are unhappy. ——Haw Smith

2. I have neither outstanding understanding nor extraordinary wit. It's just that I'm probably above the average person in terms of my ability to notice fleeting things and make detailed observations about them. ——Darwin

3. Geniuses can see into the world in front of them and discover the other world. ——Schopenhauer

4. You will usually find that you talk more when you are with someone who has nothing to say. ——Pafisa

5. A fool will always find an even fooler person who admires him. ——Bernard Shaw

6. I would like to share my excitement about recent discoveries in black holes and cosmology with Chinese readers. ——Hawking

7. I have been working hard for more than fifty years and am committed to the development of science. One word can describe the characteristics of my most difficult work, and that word is "failure."

——-Thomson