Going back to the misquothed and cannibalised 'Veni, Vidi, Vici' quotes for a moment:
Veni, Vermini, Vomui (I came, I got ratted, I threw up)
Vidi, Vici, Veni (I saw, I conquered - I came!) sorry if that one offends
"There is no substitute for bad manners, except fast reflexes" no idea on the origins.
Quotes that actually apply to bushcraft and therefore adhere to the topic:
"What difference is there between us, save a restless dream that follows my soul but fears to come near you?" - This one is particularly apt for me as my wife doesn't share my enthusiasm for the outdoors, and I feel restless if it's been too long since I've been out.
"Generosity is giving more than you can, and pride is taking less than you need." - Particularly applicable to bushcrafters I feel, especially foragers and hunters.
"And forget not that the earth delights to feel your bare feet and the winds long to play with your hair."
"A little knowledge that acts is worth infinitely more than much knowledge that is idle." - Good defense against the armchair-bushcrafters!
"If you reveal your secrets to the wind, you should not blame the wind for revealing them to the trees."
All are surprisingly by Khalil Gibran, a lebanese poet.
A great poet to read by the fire in the evenings
