Life is like a mirror, if you frown at it, it frowns back; if you smile, it returns the greeting.
数学中发现的快乐是无与伦比的。
"To love is to risk not being loved in return. To hope is to risk pain. To try is to risk failure, but risk must be taken because the greatest hazard in life is to risk nothing."
不要为你的失败感到尴尬，从中学习并重新开始。
我的作品不是为所有人准备的，这没关系。
In business, if you're not moving forward, you're falling behind.