自由不是礼物，而是必须每天争取的成就。

The multiverse is not a theory, it is a consequence of our best theories.

聪明的人喜欢水，因为他性情活跃像水一样流动不息，仁慈的人喜欢山，因为他心地淳厚象山一样厚重。聪明的人好动，仁慈的人好静，聪明的人乐观，仁慈的人长寿。

If you are not willing to learn, no one can help you. If you are determined to learn, no one can stop you.