Every man feels that perception gives him an invincible belief of the existence of that which he perceives; and that this belief i s not the effect of reasoning, but the immediate consequence of perception. When philosophers have wearied themselves and their readers with their speculations upon this subject, they can neither strengthen this belief, nor weaken it; nor can they shew how it is produced. It puts the philosopher and the peasant upon a level; and neither of them can give any other reason for believing his senses, than that he finds it impossible for him to do otherwise.
Categories
Even philosophers will praise war as ennobling mankind, forgetting the Greek who said: War is bad in that it begets more evil than it kills.
Remember that time is money.
Every government that has cheapened its currency has been knavishly false to a trust; so have those which, like ours, use public funds to subsidize large-scale gambling and swindling.
I am aware that many object to the severity of my language; but is there not cause for severity? I will be as harsh as truth, and as uncompromising as justice. On this subject, I do not wish to think, or to speak, or write, with moderation. No! no! Tell a man whose house is on fire to give a moderate alarm; tell him to moderately rescue his wife from the hands of the ravisher; tell the mother to gradually extricate her babe from the fire into which it has fallen; — but urge me not to use moderation in a cause like the present. 
To control his appetites, to govern his passions, to sacrifice the present to the future, to submit to privations for the sake of greater but more distant advantages — such are the conditions essential to the formation of capital; and capital … is itself the essential condition of all labor that is in any degree complicated or prolonged.
Be not simply good, be good for something.