The only person you should try to be better than is the person you were yesterday.

You can't just keep doing what works one time, everything around you is always changing. To succeed, stay out in front of change.

The key to making money in stocks is not to get scared out of them.

The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.

I'm not a whisper, I'm a shout.

每一个挑战都是学习和成长的机会。