I believe that one becomes stronger emotionally by taking life less personally. If your employer criticizes your report, don't take it personally. Instead, find out what's needed and fix it. If your girlfriend laughs at your tie, don't take it personally. Find another tie or find another girlfriend.

The difference between America and England is that the English think 100 miles is a long distance and the Americans think 100 years is a long time. The difference between an autobiography and an unauthorized biography is like the difference between an account of your life written by your mother and one written by your mother-in-law.

Be able to live alone, even if you don't want to and think you will never find it necessary.

Spending waiting moments doing crossword puzzles or reading a book you brought yourself.

Know what to do if you feel faint or dizzy, especially if you might fall and hit your head.

Know the names of past and current artists who are most famous for playing their instruments.

Know the difference between principles based on right or wrong vs. principles based on personal gain, and consider the basis of your own principles.