士虽有学，而行为本焉
读书人虽然有学问，但只有知行合一，把学问付诸于生活实践，才是最根本的。否则的话，就是《弟子规》上讲的“不力行，但学文，长浮华，成何人”了。
The study of mathematics is like air or gravity – it’s everywhere, even if you don’t see it.
自然是自由的领域，因为在她的统治下，任何专制都无法存在。
Innovation is not an option, but a necessity for survival.
Every book is a door that opens onto another world, and every reader is a traveler who steps through it.
万物皆由四要素组成：地、水、火、气。