我们都在阴沟里，但仍有人仰望星空。
"We are all, in some way, prisoners of our time."
What lies behind us and what lies before us are tiny matters compared to what lies within us.
The work of the philosopher consists in assembling reminders for a particular purpose.
The only person you should try to be better than is the person you were yesterday.
You cannot always control what goes on outside, but you can always control what goes on inside.