“No great improvements in the lot of mankind are possible until a great change takes place in the fundamental constitution of their modes of thought.”

“It's hardly possible to overstate the value, in the present state of human improvement, of placing human beings in contact with other persons dissimilar to themselves, and with modes of thought and action unlike those with which they are familiar. Such communication has always been... one of the primary sources of progress. ”

“Despotism is a legitimate mode of government in dealing with barbarians, provided the end be their improvement.”

“Language is evidently one of the principle instruments or helps of thought; and any imperfection in the instrument, or in the mode of employing it, is confessedly liable, still more than in almost any other art, to confuse and impede the process, and destroy all ground of confidence in the result.”

“There have been, and may be again, great individual thinkers, in a general atmosphere of mental slavery.”

“Human beings are no longer born to their place in life, and chained down by an inexorable bond to the place they are born to, but are free to employ their faculties, and such favourable chances as offer, to achieve the lot which may appear to them most desirable.”

“If all mankind minus one, were of one opinion, and only one person were of the contrary 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.”