A man of a strong and determined temper adheres tenaciously to his general resolutions, and is neither seduced by the allurements of pleasure, nor terrified by the menaces of pain; but keeps still in view those distant pursuits, by which he, at once, ensures his happiness and his honour.
Self-satisfaction, at least in some degree, is an advantage, which equally attends the fool and the wise man
 David Hume, An Enquiry Concerning the Principles of Morals (1751). copy citation

Context

“And however poets may employ their wit and eloquence, in celebrating present pleasure, and rejecting all distant views to fame, health, or fortune; it is obvious, that this practice is the source of all dissoluteness and disorder, repentance and misery. A man of a strong and determined temper adheres tenaciously to his general resolutions, and is neither seduced by the allurements of pleasure, nor terrified by the menaces of pain; but keeps still in view those distant pursuits, by which he, at once, ensures his happiness and his honour. Self-satisfaction, at least in some degree, is an advantage, which equally attends the fool and the wise man: But it is the only one; nor is there any other circumstance in the conduct of life, where they are upon an equal footing. Business, books, conversation; for all of these, a fool is totally incapacitated, and except condemned by his station to the coarsest drudgery, remains a useless burthen upon the earth.” source