“The Almighty Lecturer, by displaying the principles of science in the structure of the universe, has invited man to study and to imitation. It is as if He has said to the inhabitants of this globe that we call ours, "I have made an earth for man to dwell upon, and I have rendered the starry heavens visible, to teach him science and the arts. He can now provide for his own comfort, and learn from my munificence to all to be kind to each other.”

“Could the peaceable principle of the Quakers be universally established, arms and the art of war would be wholly extirpated: But we live not in a world of angels...I am thus far a Quaker, that I would gladly agree with all the world to lay aside the use of arms, and settle matters by negotiation: but unless the whole will, the matter ends, and I take up my musket and thank Heaven He has put it in my power.”

“I love the man that can smile in trouble, that can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink; but he whose heart is firm, and whose conscience approves his conduct, will pursue his principles unto death.”

“But with respect to religion itself, without regard to names, and as directing itself from the universal family of mankind to the divine object of adoration, it is man bringing to his maker the fruits of his heart; and though these fruits may differ from each other like the fruits of the earth, the grateful tribute of everyone is accepted.”

“Man cannot make principles, he can only discover them.”

“It is from the Bible that man has learned cruelty, rapine, and murder; for the belief of a cruel God makes a cruel man.”

“Infidelity does not consist in believing, or in disbelieving; it consists in professing to believe what he does not believe. It is impossible to calculate the moral mischief, if I may so express it, that mental lying has produced in society. When a man has so far corrupted and prostituted the chastity of his mind, as to subscribe his professional belief to things he does not believe, he has prepared himself for the commission of every other crime.”