Every one knows how the extremes of pain and pleasure pass into each other: the heart overflowing with joy seeks relief in tears, and the deepest melancholy will at times betray its presence by a smile.
 Georg Wilhelm Friedrich Hegel, Science of Logic (1816). copy citation

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Author Georg Wilhelm Friedrich Hegel
Source Science of Logic
Topic pain joy
Date 1816
Language English
Reference
Note Translated by William Wallace
Weblink http://www.gutenberg.org/files/55108/55108-h/55108-h.htm

Context

“The perception of Dialectic in the province of individual Ethics is seen in the well-known adages, Pride comes before a fall: Too much wit outwits itself. Even feeling, bodily as well as mental, has its Dialectic. Every one knows how the extremes of pain and pleasure pass into each other: the heart overflowing with joy seeks relief in tears, and the deepest melancholy will at times betray its presence by a smile. (2) Scepticism should not be looked upon merely as a doctrine of doubt. It would be more correct to say that the Sceptic has no doubt of his point, which is the nothingness of all finite existence.” source