引力比其他力弱得多这一事实可能是物理学中最深刻的谜团。
I try to get rid of people who confidently answer questions about which they don't have any real knowledge.
如果道歉夹带了借口，那就算不上是道歉。如果称赞夹带了要求，那就算不上是称赞。
The best ideas often come from unexpected places.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.