Man has Forever."

Back to his book then: deeper drooped his head:

Calculus racked him:

Leaden before, his eyes grew dross of lead:

Tussis attacked him.

"Now, master, take a little rest!"—not he!

(Caution redoubled,

Step two abreast, the way winds narrowly!)

Not a whit troubled,

Back to his studies, fresher than at first,