Were a stranger to drop on a sudden into this world, I would show him, as a specimen of its ills, a hospital full of diseases, a prison crowded with … - David Hume

Your corn is ripe today; mine will be so tomorrow. 'Tis profitable for us both, that I should labour with you today, and that you should aid me tomorrow. I have no kindness for you, and know you have as little for me. I will not, therefore, take any pains upon your account; and should I labour with you upon my own account, in expectation of a return, I know I should be disappointed, and that I should in vain depend upon your gratitude. Here then I leave you to labour alone; You treat me in the same manner. The seasons change; and both of us lose our harvests for want of mutual confidence and security.

Reason is, and ought only to be the slave of the passions, and can never pretend to any other office than to serve and obey them.
…'Tis not contrary to reason to prefer the destruction of the whole world to the scratching of my finger.

By liberty, then, we can only mean a power of acting or not acting, according to the determinations of the will.