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在回报方面,时间是你的朋友。但在成本方面,时间是你的敌人。
Sustainability isn't an option - it's our responsibility to future generations.
The hardest thing to learn in life is which bridge to cross and which to burn.
Science is about understanding the world, and engineering is about changing it.
我不是悲观主义者。我是一个受过现实主义训练的乐观主义者。
最好的领导者是那些倾听多于说话的人。
数学中的每个问题都有解决方案;你只需要找到正确的路径。