It's always too early to quit.

Know or listen to those who know.

What you do today can improve all your tomorrows.

To know oneself, one should assert oneself.

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

Things do not happen. Things are made to happen.

Be gentle to all and stern with yourself.

Do not weep do not wax indignant. Understand.

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