The foundation of morality is to have done, once and for all, with lying; to give up pretending to believe that for which there is no evidence, and r… - Thomas Henry Huxley

Most of us, shrinking from the difficulties and dangers which beset the seeker after original answers to these riddles, are contented to ignore them altogether, or to smother the investigating spirit under the featherbed of respected and respectable tradition. But, in every age, one or two restless spirits, blessed with that constructive genius, which can only build on a secure foundation, or cursed with the mere spirit of scepticism, are unable to follow in the well-worn and comfortable track of their forefathers and contemporaries, and unmindful of thorns and stumbling-blocks, strike out into paths of their own.

Every great advance in natural knowledge has involved the absolute rejection of authority.

For every man the world is as fresh as it was at the first day, and as full of untold novelties for him who has the eyes to see them.