Ordinary men are intent merely on how to spend their time; a man with any talent is interested in how to use his time.

[Die gewöhnlichen Leute sind bloß darauf bedacht, die Zeit zuzubringen; wer irgend ein Talent hat, — sie zu benutzen.]

Arthur Schopenhauer (1788-1860) German philosopher

Parerga and Paralipomena, Vol. 1, “Aphorisms on the Wisdom of Life [Aphorismen zur Lebensweisheit],” ch. 2 “Of What One Is” [Von dem, was einer ist]” (1851) [tr. Payne (1974)]
    (Source)

(Source (German)). Alternate translation:

Ordinary people think merely how they shall spend their time; a man of any talent tries to use it.
[tr. Saunders (1890)]