The happiness of this life depends less on what befalls you than the way in which you take it.
LIFE, HAPPINESS OF LIFE DEPENDS LESS ON WHAT BEFALLS
Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.
LIFE, DO NOT DWELL IN THE PAST
Most of the change we think we see in life is due to truths being in and out of favor.
LIFE, MOST OF THE CHANGE WE THINK WE SEE IN LIFE