Now this is the spell the philosophers tell
When you're puzzled by all their revisions:
The laws that we knew are not always true,
We must change them to suit the conditions.
Though you roar as you eat only red-blooded meat
And thrill with each virile sensation,
No atom or ape, no figure or shape,
By God! can escape gravitation.

For this is the lesson of Einstein;
Answer Death's grin with a scoff.
Glaring and tearing at all you resent,
Fight though the light is battered and bent —
Fight till the flesh drops off!

You may clench your fists at the scientists,
At calculus, cubes or quadratics;
You may curse and thrash since the old laws clash
With relativist kinematics;
You may goad your sides till the blood-red tides
Run off and the dry bones clatter —
At the end of the grind with a reeling mind,
By God! you will find only matter!

For this is the lesson of Einstein;
Drink at no coward's trough.
Sneering and jeering will bring no delight;
You're here to make everything cheerful and bright.
And for carfare and comfort and sweetness and light,
Fight till the flesh drops off!