更好的论证只有在更强论证的力量是唯一发挥作用的力量时才能胜出。

自然知识的改进者绝对拒绝承认权威。对他来说，怀疑主义是最高的责任；盲目信仰是不可饶恕的罪过。

I went to the woods because I wished to live deliberately. I wanted to live deep and suck out all the marrow of life, to put to rout all that was not life.

That “democracy” is a somewhat vague term which I cannot define precisely. We ought to say, therefore: “I am fairly certain that it is a good thing if a government has something of the characteristics that are common to the British and American Constitutions,” or something of this sort.

Live truth instead of professing it.