no pleasure can ever be evil, which is regulated by a true regard for our advantage.
 Baruch Spinoza, Ethics (1677). copy citation

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Author Baruch Spinoza
Source Ethics
Topic evil pleasure
Date 1677
Language English
Reference
Note Translated by R. H. M. Elwes
Weblink http://www.gutenberg.org/files/3800/3800-h/3800-h.htm

Context

“, none but the envious take delight in my infirmity and trouble. For the greater the pleasure whereby we are affected, the greater is the perfection whereto we pass, and consequently the more do we partake of the divine nature: no pleasure can ever be evil, which is regulated by a true regard for our advantage. But contrariwise he, who is led by fear and does good only to avoid evil, is not guided by reason. XXXII. But human power is extremely limited, and is infinitely surpassed by the power of external causes;” source