“We've learned how to destroy, but not to create; how to waste, but not to build; how to kill men, but not how to save them; how to die, but seldom how to live.”
“Learn how to live and you'll know how to die; learn how to die, and you'll know how to live.”
“Once you learn how to die you learn how to live”
“If it's natural to kill, how come men have to go into training to learn how?”
“The truth is, once you learn how to die, you learn how to live.”
“Such is how Science makes progress: not destroying the past, but learning from it, and building on it.”