Be gentle to all and stern with yourself.

Never complain and never explain.

Quality is not an act, it is a habit.

If you think you can do it, you can.

By failing to prepare, you are preparing to fail.

To know oneself, one should assert oneself.

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

What you do today can improve all your tomorrows.

Without hard work, nothing grows but weeds.