“I am not bound to win, but I am bound to be true. I am not bound to succeed, but I am bound to live by the light that I have. I must stand with anybody that stands right, and stand with him while he is right, and part with him when he goes wrong.”

“Today is the tomorrow you worried about yesterday.”

“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 this earth.”

“If I do good, I feel good...If I do bad, I feel bad”

“Every man's happiness is his own responsibility.”

“Tact: the ability to describe others as they see themselves.”

“The better part of one's life consists of his friendships.”

“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.” 

“Aqueles que negam liberdade aos outros não merecem para si mesmos.”

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

“You can fool all the people some of the time, and some of the people all the time, but you cannot fool all the people all the time.”

“It's not me who can't keep a secret. It's the people I tell that can't.”

“Honor to the soldier and sailor everywhere, who bravely bears his country's cause. Honor, also, to the citizen who cares for his brother in the field and serves, as he best can, the same cause.”

“I care not for a man's religion whose dog and cat are not the better for it.”

“Upon the subject of education, not presuming to dictate any plan or system respecting it, I can only say that I view it as the most important subject which we as a people can be engaged in.”