The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

Mathematics is the language in which the universe is written.

做成一件事要有缘分，抓住机遇，准确把握其轻重缓急，会使其尽善尽美；如果时运不济，抓不住机会，那么每做一事，均不得成功。