Millie

“Capacity for the nobler feelings is in most natures a very tender plant, easily killed, not only by hostile influences, but by mere want of sustenance; and in the majority of young persons it speedily dies away if the occupations to which their position in life has devoted them, and the society into which it has thrown them, are not favourable to keeping that higher capacity in exercise.”
― John Stuart Mill, Utilitarianism

“All social inequalities which have ceased to be considered expedient, assume the character not of simple inexpediency, but of injustice, and appear so tyrannical, that people are apt to wonder how they ever could have. been tolerated; forgetful that they themselves perhaps tolerate other inequalities under an equally mistaken notion of expediency, the correction of which would make that which they approve seem quite as monstrous as what they have at last learnt to condemn.”
― John Stuart Mill, Utilitarianism

“The end may justify the means as long as there is something that justifies the end.”
― Leon Trotsky, Their Morals and Ours: The Class Foundations of Moral Practice

“...the rarest of all human qualities is consistency.”
― Jeremy Bentham