The primary cause of unhappiness is never thesituation but your thoughts about it.
The best way to learn mathematics is to do mathematics.
The world always seems brighter when you've just made something that wasn't there before.
如果你没有失败,说明你不够努力。
The difference between the impossible and the possible lies in a person’s determination.
海洋养育了数百万人,我们有责任确保它能为子孙后代继续这样做。
The best part about life is making mistakes and learning from them.