Be gentle to all and stern with yourself.

To know oneself, one should assert oneself.

Without hard work, nothing grows but weeds.

Things do not happen. Things are made to happen.

Never complain and never explain.

Do not weep do not wax indignant. Understand.

It's always too early to quit.

Problems are not stop signs, they are guidelines.

Quality is not an act, it is a habit.