Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

"You have to believe in yourself when no one else does."

肉体是悲伤的，唉，而我已读完所有的书。

“谁如命运似的催着我向前走呢？““那是我自己，在身背后大跨步走着。”

The path to gender equality is paved with both progress and persistent challenges.

释义：古往今来的多少事，都付之于人们的谈笑中。