"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."
信任就像一面鏡子，即使修復了破碎，你仍然能在那個混蛋的倒影中看到裂縫。
Old minds are like old horses; you must exercise them if you wish to keep them in working order.
生活中最好的東西是免費的。
The best performance improvement is the transition from the nonworking state to the working state.