股市在短期内是投票机，在长期内是称重机。

知识的每一次进步都会带来新的问题和新的困难。

If you want to build a great enterprise, you have to have the courage to dream great dreams.

Success is not final, failure is not fatal: It is the courage to continue that counts.

A program that has not been tested does not work.

The key to solving global hunger is not just increasing yield, but improving nutritional quality.

The ability to focus attention is crucial for learning, memory, and performance in complex tasks.