Optimists tend to interpret their troubles as transient, controllable, and specific to one situation. Pessimists, on the other hand, believe that their troubles last forever, undermine everything they do, and are uncontrollable.

海洋不仅是一种资源，保护它是我们对后代的责任。

最好的领导者是那些多听少说的人。

手书黄埔军官学校训词（中国国民党党歌词，中华民国国歌歌词）

Matter is divisible ad infinitum, while form is indivisible.

Life is too short to worry about what other people think.

一个人的性格就是他的命运。