说话谨慎,行事快捷。

The act of writing is an act of self-discovery.

El miedo es la única enfermedad incurable.

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.

In business, as in life, relationships are the foundation of everything.

自然嘲笑积分的困难。