"Science is the great antidote to the poison of enthusiasm and superstition."

The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.

Men are afraid that women will laugh at them. Women are afraid that men will kill them.

Don't let the noise of others' opinions drown out your own inner voice.

生活中最大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。