数学之美不在于其复杂性，而在于其简洁性以及它揭示的关于宇宙的深刻真理。
The beauty of mathematics is not in its complexity, but in its simplicity and the profound truths it reveals about the universe.
挑战不仅仅是给人们钱，而是要理解他们在约束下如何做决策。
Oil and gas will remain part of the energy mix for decades to come, but we must produce them as cleanly as possible.
"The future is always beginning now."
我们必须立即行动，因为海洋的衰退是我们不能忽视的危机。
Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government," and as such constituted the "end of history."