Know or listen to those who know.

After a storm comes a calm.

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

To know oneself, one should assert oneself.

Be gentle to all and stern with yourself.

Expect problems and eat them for breakfast.

By failing to prepare, you are preparing to fail.

Do not weep do not wax indignant. Understand.

Things do not happen. Things are made to happen.