统一自然界基本力的追求是现代物理学中最大的挑战之一。
Transparency and accountability must be at the core of every energy company's operations.
The greatest happiness for the laborer consists in having an abundant supply of the necessaries of life.
Self-education is, I firmly believe, the only kind of education there is.
People don't buy what you do; they buy why you do it.