Full Idea
Perhaps there is no one alive who would not already have put an end to his life if this end were something purely negative, a sudden cessation of existence.
Gist of Idea
If suicide was quick and easy, most people would have done it by now
Source
Arthur Schopenhauer (Parerga and Paralipomena [1851], XIII:158)
Book Reference
Schopenhauer,Arthur: 'Essays and Aphorisms [from Pand P]', ed/tr. Hollingdale,R.J. [Penguin 1970], p.79
A Reaction
Nonsense, on the whole, but it is a nice question how many people would do it if it only took a painless instant.