I don't believe in over-diversification. I prefer to focus on a few good ideas.

蒸汽的力量如今已被充分理解，剩下的只是改进实践。

In the end, the value of a theory is not in its complexity, but in its ability to explain and predict.

Sustainable forestry is not a cost - it's the smartest long-term business strategy we have.

Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government."