The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.
The night is a great poem, and the stars are its verses.
Mathematics is the foundation upon which all science is built.
我唔会为咗讨好任何人而改变自己。