组合数学就像是不用实际计数的计数艺术。
Combinatorics is like the art of counting without actually counting.
世间之事，有的可以做，有的不可以做，明知不可为而为之，是愚蠢的行为。
The best way to predict the future is to create it.
Sustainability must be at the core of every decision we make in the oil and gas industry.
I don’t let opinions define me, I let them refine me.
Success is 1% inspiration and 99% perspiration.