A tranquil mind is the source of health.
数学中的合作是必不可少的;思想的交流导致了任何单一思维都无法独自实现的突破。
The present is the past rolled up for action, and the past is the present unrolled for understanding.
The possible ranks higher than the actual.
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。