When you fail, that's when you get up and try again. There's no reason to just stay down.
Money is overrated. Truly new things rarely need an abundance of money. If that was so， billionaires would have a monopoly on inventing new things， and they don’t. Instead almost all breakthroughs are made by those who lack money， because they are forced to rely on their passion， persistence and ingenuity to figure out new ways. Being poor is an advantage in innovation.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
The world is a place of the living, and the dead have no place in it.
The power of suggestion is immense in shaping human behavior, often without the individual being aware of the influence.