Fear of change stifles progress; understanding change directs it.
Sustainability starts with small steps, but requires big vision.
数学家沉浸在他的符号洪流中,表面上处理纯粹的形式真理,仍然可能得出对我们描述物理宇宙具有无尽重要性的结果。
Every great mathematical theory begins as a heresy and ends as a dogma.