Never complain and never explain.

The most effective way to do it, is to do it.

It's always too early to quit.

Without hard work, nothing grows but weeds.

To know oneself, one should assert oneself.

Do not weep do not wax indignant. Understand.

By failing to prepare, you are preparing to fail.

Be gentle to all and stern with yourself.

Well done is better than well said.