Why I Wrote PGP (1991, revised 1999)
- Why I Wrote PGP Part of the Original 1991 PGP User's Guide (updated in 1999) "Whatever you do will be insignificant, but it is very important that you do it.
Unverified
- Why I Wrote PGP Part of the Original 1991 PGP User's Guide (updated in 1999) "Whatever you do will be insignificant, but it is very important that you do it.
Sources: Philzimmermann