The key to success is to focus on goals, not obstacles.
Suffering! We owe to it all that is good in us, all that gives value to life; we owe to it pity, we owe to it courage, we owe to it all the virtues.
No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
无论多么复杂或精细，所有行为都可以用刺激和反应来解释。
苦难是智慧的学校。
如果人们不能相信他们的政府做它该做的事，保护他们和促进他们的共同福利——那我们就完全失败了。
"I work hard, and I do good, and I'm going to enjoy myself. I'm not going to let you restrict me."