如果它不挑戰(zhàn)你，它就不會改變你。
If it doesn't challenge you, it won't change you.
一旦你著手要攻下維也納，就把她拿下吧﹗
數(shù)學中最深刻的發(fā)現(xiàn)往往來自最簡單的觀察。
The most hateful torment for men is to have knowledge of everything but power over nothing.
I believe in the power of dreams and the beauty of taking risks.
The future of grain production lies in sustainable practices that respect both the land and the people who work it.