Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.
The mind is everything. What you think you become.
The secret of health for both mind and body is not to mourn for the past, not to worry about the future, or not to anticipate troubles, but to live in the present moment wisely and earnestly.
A jug fills drop by drop.
You will not be punished for your anger. You will be punished by your anger.