Love is the wisdom of the fool and the folly of the wise.

Since every man is obliged to promote happiness and virtue, he should be careful not to mislead unwary minds, by appearing to set too high a value upon things by which no real excellence is conferred.

For sorrow there is no remedy provided by nature; it is often occasioned by accidents irreparable, and dwells upon objects that have lost or changed their existence; it requires what it cannot hope, that the laws of the universe should be repealed; that the dead should return, or the past should be recalled.

The perfect day for quitting is not real. It will never come, so might as well start today

Every man that has felt pain knows how little all other comforts can gladden him to whom health is denied. Yet who is there does not sometimes hazard it for the enjoyment of an hour?

No man will be found in whose mind airy notions do not sometimes tyrannize, and force him to hope or fear beyond the limits of sober probability.

Nothing has tended more to retard the advancement of science than the disposition in vulgar minds to vilify what they cannot comprehend.