科学是一股向善的力量，但前提是我们明智地使用它。
Order and simplification are the first steps toward the mastery of a subject.
In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.
I never look back. I look forward to the next challenge.
I've learned that success is not about the destination, but about the journey.
