Sometimes I just feel like quitting, but then I think about all the people I’d be letting down.
有时候我真想放弃，但想到会让很多人失望，我就坚持下来。
The mind is an instrument of survival before it is an instrument of thought.
不耽误农业生产的季节，粮食就会吃不完；密网不下到池塘里，鱼鳖就会吃不完；按一定的季节入山伐木，木材就会用不完。
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
限制性信念是大脑的监狱，而学习是打开监狱的钥匙。