Freedom or free will
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By liberty is understood, according to the proper signification of the word, the absence of external impediments; which impediments may oft take away part of a man's power to do what he would, but cannot hinder him from using the power left him according as his judgement and reason shall dictate to him.
Hobbes, Lev XIV 2
Of ‘liberty’ or ‘freedom’.
LIBERTY, or freedom, signifieth properly the absence of opposition (by opposition, I mean external impediments of motion); and may be applied no less to irrational and inanimate creatures than to rational. For whatsoever is so tied, or environed, as it cannot move but within a certain space, which space is determined by the opposition of some external body, we say it hath not liberty to go further. And so of all living creatures, whilst they are imprisoned, or restrained with walls or chains; and of the water whilst it is kept in by banks or vessels that otherwise would spread itself into a larger space; we use to say they are not at liberty to move in such manner as without those external impediments they would. But when the impediment of motion is in the constitution of the thing itself, we use not to say it wants the liberty, but the power, to move; as when a stone lieth still, or a man is fastened to his bed by sickness.
Hobbes, Lev XXI 1
Of ‘free will’.
Lastly, from the use of the words free will, no liberty can be inferred of the will, desire, or inclination, but the liberty of the man; which consisteth in this, that he finds no stop in doing what he has the will, desire, or inclination to do.
Hobbes, Lev XXI 2
Only bodies can be free or not; talk of anything else being free is reducible to freedom of bodily movement.
And according to this proper and generally received meaning of the word, a freeman is he that, in those things which by his strength and wit he is able to do, is not hindered to do what he has a will to. But when the words free and liberty are applied to anything but bodies, they are abused; for that which is not subject to motion is not to subject to impediment: and therefore, when it is said, for example, the way is free, no liberty of the way is signified, but of those that walk in it without stop. And when we say a gift is free, there is not meant any liberty of the gift, but of the giver, that was not bound by any law or covenant to give it. So when we speak freely, it is not the liberty of voice, or pronunciation, but of the man, whom no law hath obliged to speak otherwise than he did.
Hobbes, Lev XXI 2
One can act freely but out of fear—including out of fear of the law.
Fear and liberty are consistent: as when a man throweth his goods into the sea for fear the ship should sink, he doth it nevertheless very willingly, and may refuse to do it if he will; it is therefore the action of one that was free: so a man sometimes pays his debt, only for fear of imprisonment, which, because no body hindered him from detaining, was the action of a man at liberty. And generally all actions which men do in Commonwealths, for fear of the law, are actions which the doers had liberty to omit.
Hobbes, Lev XXI 3