Science is not just about facts; it’s about the stories behind them.
I don't think that everyone should become a mathematician, but I do believe that many students don't give mathematics a real chance.
质量不是一种行为,而是一种习惯。
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.
The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.