On Friendship

I have therefore thought fit to borrow one of Étienne de La Boétie, and such a one as shall honour and adorn all the rest of my work--namely, a discourse that he called 'Voluntary Servitude'; but, since, those who did not know him have properly enough called it "Against One" He wrote in his youth, by way of essay, in honour of liberty against tyrants; and it has since run through the hands of men of great learning and judgment, not without singular and merited commendation; for it is finely written, and as full as anything can possibly be. […] These were all I could recover of his remains, I to whom with so affectionate a remembrance, upon his death-bed, he by his last will bequeathed his library and papers, the little book of his works only excepted, which I committed to the press. And this particular obligation I have to this treatise of his, that it was the occasion of my first coming acquainted with him; for it was showed to me long before I had the good fortune to know him; and the first knowledge of his name, proving the first cause and foundation of a friendship, which we afterwards improved and maintained, so long as God was pleased to continue us together, so perfect, inviolate, and entire, that certainly the like is hardly to be found in story, and amongst the men of this age, there is no sign nor trace of any such thing in use; so much concurrence is required to the building of such a one, that 'tis much, if fortune bring it but once to pass in three ages.

source: Montaigne: Essais