There is no absolute security, only relative risk control.
最成功的意识形态效果是那些不需要言语,只需默许沉默的效果。
科学的进步不仅依赖于事实的积累,还依赖于知识的组织。
下山比上山容易,但最好的视野在山顶。
The more you like yourself, the less you are like anyone else, which makes you unique.