Don't bother just to be better than your contemporaries or predecessors. Try to be better than yourself.
Mathematics is the music of reason.
译文:在这片疆域之内,有平原、湿地、丘陵和广阔的田野,一眼望去无边无际。
The trouble with most people is that they think with their hopes or fears or wishes rather than with their minds.
The elegance of a mathematical proof is in its simplicity and clarity.