过去永远存在,现在永远是过去。
The biggest weapon against stress is our ability to choose one thought over another.
我不会让消极情绪击垮我。
数学是一种超越文化和语言障碍的通用语言。
你越了解自己,就越能对他人所见保持耐心。
There is no scarcity of opportunity to make a living at what you love; there's only scarcity of resolve to make it happen.