The principle of asceticism never was， nor ever can be， consistently pursued by any living creature.
禁欲主义原则从来没有被任何生物一贯坚持过，也永远不会被如此坚持。
The only way to escape the mundane is to constantly transform it.
量子引力问题不仅是物理学的问题，也是科学哲学的问题。
工程事业必须学术和经验相辅相成，仅靠空谈绝对难以胜任。