Know or listen to those who know.

It's always too early to quit.

Be kind whenever possible. It is always possible.

Quality is not an act, it is a habit.

You never know what motivates you.

By failing to prepare, you are preparing to fail.

To know oneself, one should assert oneself.

Begin to be now what you will be hereafter.

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