What is Energy?
Energy is the quantitative measure of motion and forces. Energy is
another aspect of time and also comes from the expansion of space.
Energy measurement takes into account both motion and forces
within an object. Velocity or speed is the qualitative measure of
motion. Velocity measures how fast or slow a motion is compared to
another more basic motion like the speed of light while energy takes
into account motion as well as forces within a mass
Time is:-
Too slow for those who wait,
Too swift for those who fear,
Too long for those who grieve,
Too short for those who rejoice,
But for those who Love
Time is eternity.
--Henry Van Dyke