Don’t let anyone tell you what you can’t do. Prove them wrong.
The man who is fit to work at any particular trade is unable to understand the science of that trade without the kindly help and cooperation of men of a totally different type of education.
The only limit to our realization of tomorrow is our doubts of today.
最好的领导者是那些倾听多于说话的人。
Sustainability starts with small steps, but requires big vision.
You can pay for school but you can't buy class.