Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
學(xué)者學(xué)習(xí)古人，開(kāi)始時(shí)接觸到的是粗淺的內(nèi)容，中期接觸到精華，最終領(lǐng)悟到其神妙變化。
We must measure success not just in barrels produced, but in emissions avoided.
Success in the quarrying industry comes from balancing efficiency with environmental responsibility.
采石業(yè)的成功來(lái)自于效率與環(huán)境責(zé)任的平衡。
Don't fight a battle if you don't gain anything by winning.
The world changes fast, but people's hearts change slowly.