All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty or possessions.
John LockeThe only fence against the world is a thorough knowledge of it, into which a young gentleman should be enter'd by degrees, as he can bear it; and the earlier the better, so he be in safe and skillful hands to guide him.
John LockeAll the entertainment and talk of history is nothing almost but fighting and killing: and the honour and renown that is bestowed on conquerors (who for the most part are but the great butchers of mankind) farther mislead growing youth, who by this means come to think slaughter the laudable business of mankind, and the most heroic of virtues.
John Locke