Optimism is a learned skill. Once you learn it, you can improve your life in every way.
乐观是一种可以学习的技能。一旦你学会了它，你就能在各个方面改善你的生活。
Leadership means making tough decisions today for a better tomorrow.
Natural gas is a bridge to a cleaner energy future, but we must cross that bridge responsibly.
Every seed planted is a promise to the future.
Be strict with yourself and forgiving of others. The reverse is hell for everyone.
如果你感到自己已经很完美了，那么你永远不会达到你本可以达到的高度。
To understand the mind, follow its practical consequences.