The essence of mathematics lies in its freedom.

I think that the most important thing in life is to be happy and to make other people happy.

The science of government it is my duty to study, more than all other sciences; the arts of legislation and administration and negotiation ought to take the place of, indeed to exclude, in a manner, all other arts.

我们看到的似乎疯狂的世界是一个不起作用的信仰体系的结果。

夜很黑，我远离家乡。