Happiness alone is, in the view of reason, far from being the complete good.
 Immanuel Kant, Critique of Pure Reason (1791). copy citation

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Author Immanuel Kant
Source Critique of Pure Reason
Topic happiness reason
Date 1791
Language English
Reference
Note Translated by J. M. D. Meiklejohn
Weblink http://www.gutenberg.org/files/4280/4280-h/4280-h.htm

Context

“Thus, without a God and without a world, invisible to us now, but hoped for, the glorious ideas of morality are, indeed, objects of approbation and of admiration, but cannot be the springs of purpose and action. For they do not satisfy all the aims which are natural to every rational being, and which are determined a priori by pure reason itself, and necessary. Happiness alone is, in the view of reason, far from being the complete good. Reason does not approve of it (however much inclination may desire it) , except as united with desert. On the other hand, morality alone, and with it, mere desert, is likewise far from being the complete good.” source