“Survival instincts are one of those things that never die.”

“Unfortunately, most people never observe the natural cycle of birth and death. They do not realize that for one living thing to survive, another living thing must die.”

“Never admit defeat and ask for a quick death! Die first, then admit defeat! If you are defeated but didn't die, it just means you were lucky! At those times, think only about survival! Survive and think only about killing the one who failed to kill you!~Kenpachi Zaraki”

“Like every living thing its prime characteristic is a blind, unreasoned instinct to survive.”

“Friendship is unnecessary, like philosophy like art... It has no survival value; rather it is one of those things that give values to survival.”

“Friendship is unnecessary, like philosophy, like art.... It has no survival value; rather it is one of those things which give value to survival.”