I do not think, sir, you have ...

I do not think, sir, you have any right to command me, merely because you are older than I, or because you have seen more of the world than I have; your claim to superiority depends on the use you have made of your time and experience.
I do not think, sir, you have any right to command me, merely because you are older than I, or because you have seen more of the world than I have; your claim to superiority depends on the use you have made of your time and experience.

More phrases

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
I know but one freedom and that is the freedom of the mind.
 Antoine de Saint-Exupéry
Freedom is not worth having if it does not connote freedom to err.
The amount of happiness that you have depends on the amount of freedom you have in your heart.
 Thích Nhất Hạnh
Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.

Quotes from the same author

A ruffled mind makes a restless pillow.
Life is so constructed that an event does not, cannot, will not, match the expectation.
Am I a liar in your eyes?" he asked passionately. "Little skeptic, you shall be convinced. What love have I for Miss Ingram? None: and that you know. What love has she for me? None: as I have taken pains to prove; I caused a rumor to reach her that my fortune was not a third of what was supposed, and after that I presented myself to see the result; it was coldness both from her and her mother. I would not-I could not-marry Miss Ingram. You-you strange-you almost unearthly thing!-I love as my own flesh. You-poor and obscure, and small and plain as you are-I entreat to accept me as a husband.
I like the spirit of this great London which I feel around me. Who but a coward would pass his whole life in hamlets; and for ever abandon his faculties to the eating rust of obscurity?
You have introduced a topic on which our natures are at variance - a topic we should never discuss: the very name of love is an apple of discord between us. If the reality were required, what should we do? How should we feel? My dear cousin, abandon your scheme of marriage - forget it.