The real tragedy of the poor is that they can afford nothing but self-denial.

生活比人类头脑所能发明的任何事物都要离奇得多。

The only way to do great work is to love what you do.

The best mathematics is not just logical; it is intuitive and creative, blending rigor with imagination.

心灵的肖像比身体的肖像更接近真实。