The war on coal is a war on the American worker.
I think it's important to stand up for what you believe in.
化学之美在于它能够在分子水平上解释世界。
不要让那些混蛋把你磨碎。
The only limit is the one you set yourself.
你最好的工作将是那些你不太胜任的,因为它会促使你去挑战自我。实际上,你只应该申请那些你不太胜任的工作。
The most sustainable quarry is the one that balances production with environmental stewardship.