Thomas Henry Huxley PC PRS FLSwas an English biologist, known as "Darwin's Bulldog" for his advocacy of Charles Darwin's theory of evolution... (wikipedia)
The cradle of every science is surrounded by dead theologians as that of Hercules was with strangled serpents
Learn what is true in order to do what is right" is the summing up of the whole duty of man
Sit down before fact as a little child, be prepared to give up every preconceived notion, follow humbly wherever and to whatever abysses nature leads, or you shall learn nothing
Patience and tenacity of purpose are worth more than twice their weight of cleverness.
The deepest sin of the human mind is to believe things without evidence
Science is simply common sense at its best - that is, rigidly accurate in observation, and merciless to fallacy in logic
Perhaps the most valuable result of al education is the ability to make yourself do the thing you have to do, when it ought to be done, whether you like it or not.
It is the customary fate of new truths to begin as heresies and to end as superstitions
The world makes up for all its follies and injustices by being damnably sentimental
Infidel' is a term of reproach, which Christians and Mohammedans, in their modesty, agree to apply to those who differ from them
Agnosticism simply means that a man shall not say he knows or believes that for which he has no grounds for professing to believe