唯一真正的旅程是内心的旅程。
Dans le doute, abstiens-toi.
The pursuit of mathematical truth is a pursuit of beauty, elegance, and simplicity.
Trust is the most expensive thing in business.
永远不要停止学习——当你认为自己什么都懂的那一刻,就是你落后的开始。
What you actually pay for something is at least twice the listed price because of the energy, time, money needed to set it up, learn, maintain, repair, and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.