“Labor is prior to, and independent of, capital. Capital is only the fruit of labor, and could never have existed if labor had not first existed. Labor is the superior of capital, and deserves much the higher consideration.”

“Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties.”

“He has a right to criticize, who has a heart to help.”

“Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation or any nation so conceived and so dedicated can long endure. We are met on a great battlefield of that war. We have come to dedicate a portion of that field as a final resting-place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But in a larger sense, we cannot dedicate, we cannot consecrate, we cannot hallow this ground. The brave men, living and dead who struggled here have consecrated it far above our poor power to add or detract. The world will little note nor long remember what we say here, but it can never forget what they did here. It is for us the living rather to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us — that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion — that we here highly resolve that these dead shall not have died in vain, that this nation under God shall have a new birth of freedom, and that government of the people, by the people, for the people shall not perish from the earth.” 

“It is said an Eastern monarch once charged his wise men to invent him a sentence to be ever in view, and which should be true and appropriate in all times and situations. They presented him the words, "And this too, shall pass away." How much it expresses! How chastening in the hour of pride! How consoling in the depths of affliction!”

“A drop of honey gathers more flies than a gallon of gall.”

“If Abraham Lincoln were alive now, he'd roll over in his grave.”

“If you think you can you can, if you think you can't you're right!”

“Don’t criticize them; they are just what we would be under similar circumstances.”

“I am slow to listen to criminations among friends, and never expose their quarrels on either side…allow bygones to be bygones, and look to the present & future only.”

“A capacity, and taste, for reading, gives access to whatever has already been discovered by others. It is the key, or one of the keys, to the already solved problems. And not only so. It gives a relish, and facility, for successfully pursuing the [yet] unsolved ones.”

“Be not deceived. Revolutions do not go backward.”

“Get books, sit yourself down anywhere, and go to reading them yourself.”

“There can be glory in failure and despair in success.”

“I never had a policy; I have just tried to do my very best each and every day.”