“I know of nothing so pleasant to the mind, as the discovery of anything which is at once new and valuable--nothing which so lightens and sweetens toil, as the hopeful pursuit of such discovery.”

“Anybody will do for you, but not for me. I must have somebody.”

“Commitment is what transforms a promise into reality.”

“The greatest fine art of the future will be the making of a comfortable living from a small piece of land.”

“Nothing will divert me from my purpose.”

“you can't escape tomorrow's responsibilities by evading it today”

“Allow the President to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion and you allow him to do so whenever he may choose to say he deems it necessary for such purpose -- and you allow him to make war at pleasure. . . . If, today, he should choose to say he thinks it necessary to invade Canada to prevent the British from invading us, how could you stop him? You may say to him, 'I see no probability of the British invading us'; but he will say to you, 'Be silent; I see it, if you don't.”

“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.” 

“Let me not be understood as saying that there are no bad laws, nor that grievances may not arise for the redress of which no legal provisions have been made. I mean to say no such thing. But I do mean to say that although bad laws, if they exist, should be repealed as soon as possible, still, while they continue in force, for the sake of example they should be religiously observed.”

“no man who is resolved to make the most of himself can spare time for personal contention, still less can he afford to take the consequences, including the vitiation of his temper and the loss of self control, yield to larger things to which you show no more than equal rights, and yield to lesser ones though clearly your own, better give your path to a dog, than be bitten by him in contesting for the right, not even killing the dog, will cure the bite”

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

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

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

“When you have got an elephant by the hind legs and he is trying to run away. it's best to let him run"

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