When making something, always get a few extras — extra material, extra parts, extra space, extra finishes. The extras serve as backups for mistakes, reduce stress, and fill your inventory for the future. They are the cheapest insurance.
最优秀的企业不仅仅是适应变化,而是推动变化。
理想的学校是鼓励孩子发展自身能力并表达自己个性的地方。