非经典逻辑的研究不仅是一种学术练习,更是理解复杂系统的必要条件。
给定系统中的酸和碱不是绝对的,而是相互关联的。
你将学到的最伟大的事情就是去爱并被爱回报。
If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."