Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: Ye must have faith.

The so-called understanding is often just a misunderstanding that is widely circulated.

仓库里没有储备的谷物，不可以应付凶饥之年；兵库不准备兵器，没有足够的实力，即使站在正义的一方也无法征讨无义之人，实力是维护正义的强有力的保障；城郭防守不完全，则不能守护自己；没有居安思危的心理，不可应付突发事件。

人生最重要的是活得开心，其他都是次要。