Give unqualified assent to no propositions but those the truth of which is so clear and distinct that they cannot be doubted. The enunciation of this first great commandment of science consecrated doubt. — Thomas Huxley Copy Share Image
Perhaps no order of mammals presents us with so extraordinary a series of gradations as this [step by step, from humans to apes to… — Thomas Huxley Copy Share Image
There is nothing of permanent value (putting aside a few human affections) nothing that satisfies quiet reflection--except the sense of having worked according to… — Thomas Huxley Copy Share Image
It is not to be forgotten that what we call rational grounds for our beliefs are often extremely irrational attempts to justify our instincts. — Thomas Huxley Copy Share Image
Our reverence for the nobility of manhood will not be lessened by the knowledge that man is in substance and in structure, one with… — Thomas Huxley Copy Share Image
In science, as in art, and, as I believe, in every other sphere of human activity, there may be wisdom in a multitude of… — Thomas Huxley Copy Share Image
Science is simply common sense at its best, that is, rigidly accurate in observation, and merciless to fallacy in logic. — Thomas Huxley Copy Share Image
Oh devil! truth is better than much profit. I have searched over the grounds of my belief, and if wife and child and name… — Thomas Huxley Copy Share Image
Let us have "sweet girl graduates" by all means. They will be none the less sweet for a little wisdom; and the "golden hair"… — Thomas Huxley Copy Share Image
In matters of the intellect, do not pretend that conclusions are certain which are not demonstrated or demonstrable. That I take to be the… — Thomas Huxley Copy Share Image
And you very soon find out, if you have not found it out before, that patience and tenacity of purpose are worth more than… — Thomas Huxley Copy Share Image
No one who has lived in the world as long as you & I have, can entertain the pious delusion that it is engineered… — Thomas Huxley Copy Share Image
Mix salt and sand, and it shall puzzle the wisest of men, with his mere natural appliances, to separate all the grains of sand… — Thomas Huxley Copy Share Image
What are the moral convictions most fondly held by barbarous and semi-barbarous people? They are the convictions that authority is the soundest basis of… — Thomas Huxley Copy Share Image
![“Perhaps no order of mammals presents us with so extraordinary a series of gradations as this [step by step, from humans to apes to monkeys to lemurs] - leading us insensibly from the crown and summit of the animal creation down to creatures, from which there is but a step, as it seems, to the…” quote by Thomas Huxley](https://sms4smile.com/quotes/img-quotes/f0b/thomas-huxley-1183_animal_perhaps-no-order-of-mammals-presents-us_3051.jpg)
