Be kind whenever possible. It is always possible.

It's always too early to quit.

What you do today can improve all your tomorrows.

Know or listen to those who know.

To know oneself, one should assert oneself.

Problems are not stop signs, they are guidelines.

By failing to prepare, you are preparing to fail.

Quality is not an act, it is a habit.

The dog that trots about finds a bone.