The true challenge in mathematics is not solving problems, but asking the right questions.
數(shù)學中真正的挑戰(zhàn)不是解決問題，而是提出正確的問題。
The information paradox is one of the deepest puzzles in theoretical physics.
是我們的選擇而非能力，真正展現(xiàn)了我們是誰。
Certification schemes are the floor, not the ceiling of responsible forestry practice.