The US patent system adds the fuel of interest to the fire of genius in the discovery and production of new and useful things

I say 'try'; if we never try, we shall never succeed.

Familiarize yourselves with the chains of bondage and you prepare your own limbs to wear them. Accustomed to trample on the rights of others, you have lost the genius of your own independence and become the fit subjects of the first cunning tyrant who rises among you.

Property is the fruit of labor; property is desirable; it is a positive good.

Women are the only people I am afraid of who I never thought would hurt me

[If not re-elected in 1864] then it will be my duty to so co-operate with the President elect, as to save the Union between the election and the inauguration; as he will have secured his election on such ground that he can not possibly save it afterwards.

Let every American, every lover of liberty, every well wisher to his posterity, swear by the blood of the Revolution, never to violate in the least particular, the laws of the country; and never to tolerate their violation by others.