I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.

If you double the number of experiments you do per year, you're going to double your inventiveness.

债券市场是市场心理的最终衡量标准。

大多数人的问题在于他们用希望、恐惧或愿望来思考，而不是用他们的头脑。