一个人只要能够生活就感到满足的话，他就会生活的很愉快。我们愈不知道忍受，我们愈感到痛苦。
"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."
The truth is like the sun. You can shut it out for a time, but it ain't goin' away.
"The past is a shadow that follows us, but it is also a light that guides us."
The future belongs to those who can extract value while reducing environmental impact.
