Success is not final, failure is not fatal: It is the courage to continue that counts.
我尽力摆脱那些总是自信满满地回答他们并没有真正了解的问题的人。
理论与观测之间的相互作用推动了天体物理学的发展。
Sometimes the hardest thing in life is to know which bridge to cross and which to burn.
乐观主义者认为这是所有可能世界中最好的一个。悲观主义者则担心这是真的。
Being something and doing something that no one had done before are two different things.