Retire into yourself as much as possible. Associate with people who are likely to improve you. Welcome those whom you are capable of improving. The process is a mutual one. People learn as they teach.
If you don't know, ask. You will be a fool for the moment, but a wise man for the rest of your life.
We suffer more in imagination than in reality.
Begin at once to live, and count each day as a separate life.
Even people who aren’t geniuses can outthink the rest of mankind if they develop certain thinking habits.
Building a better mousetrap merely results in smarter mice.
The love for all living creatures is the most noble attribute of man.
A man who dares to waste one hour of time has not discovered the value of life.
You have power over your mind - not outside events. Realize this, and you will find strength.
How much more grievous are the consequences of anger than the causes of it.
or simply: