Pride relates more to our opinion of ourselves, vanity to what we would have others think of us.
Pride and Prejudice
I don't think necessity is the mother of invention - invention, in my opinion, arises directly from idleness, possibly also from laziness. To save oneself trouble.
All our progress is an unfolding, like the vegetable bud. You have first an instinct, then an opinion, then a knowledge, as the plant has root, bud and fruit. Trust the instinct to the end, though you can render no reason.
It is not he who reviles or strikes you who insults you, but your opinion that these things are insulting.
The two powers which in my opinion constitute a wise man are those of bearing and forbearing.
Never write about a place until you're away from it, because that gives you perspective.
That mysterious independent variable of political calculation, Public Opinion.
Universities, Actual & Ideal
Were we to act but in cases where no contrary opinion of a lawyer can be had, we should never act.
Be sure of the foundation of your life. Know why you live as you do. Be ready to give a reason for it. Do not, in such a matter as life, build an opinion or custom on what you guess is true. Make it a matter of certainty and science.
Substance and Show and Other Lectures
If all mankind minus one were of one opinion, mankind would be no more justified in silencing that one person than he, if he had the power, would be justified in silencing mankind.
We can never be sure that the opinion we are endeavoring to stifle is a false opinion; and if we are sure, stifling it would be an evil still.
Everyone is entitled to their own opinions. But everyone is not entitled to their own facts.
In this topsy-turvy, crazy, illogical world, Man has made laws for himself. He has fenced himself round with them, mainly with the idea of keeping communities together, and gain for the strongest. No woman was consulted in the making of laws. And nine-tenths of the people who are daily obeying--or fighting against--Nature's laws, have no real opinion. Opinion means deduction, after weighing the matter, and deep thought upon it. They simply echo feeling, because for generations forbears have laid something down as an axiom. They do not investigate or weigh for themselves. The axiom of the forbears was, 'It is immoral to follow God's law, unless bound by man's law and a wedding ring.'
quoted in Mark Twain on Three Weeks, Elinor Glyn
Diversity of opinion about a work of art shows that the work is new, complex, and vital.
The Preface To ‘The Picture Of Dorian Gray’, 1891