Have you found the fountain of youth or--or what ?" Callandar threw an affectionate arm over the other man's shoulders.
"I _am_ young, amn't I! Trouble is, I didn't know it." He ruffled his hair at the side so that the grey showed plainly.

"Terrible thing when one loses the realisation of youth! But I've had my lesson.

I'll never be old again, never!" In spite of himself the professor's straight mouth curved a little.

A spark of pride glowed in his cool eyes as he bent them upon the smiling face of his friend.

Yet his tone was mocking as he said, "Then it is the fountain of youth?
One is never too old to find that chimera." "It's not something that I've found, old cynic.