Be gentle to all and stern with yourself.

Do not weep do not wax indignant. Understand.

Problems are not stop signs, they are guidelines.

It's always too early to quit.

To know oneself, one should assert oneself.

Always desire to learn something useful.

Know or listen to those who know.

Go for it now. The future is promised to no one.

The wise does at once what the fool does at last.