Francis Bacon Quote
If you would work any man, you must either know his nature and fashions, and so lead him; or his ends, and so persuade him or his weakness and disadvantages, and so awe him or those that have interest in him, and so govern him. In dealing with cunning persons, we must ever consider their ends, to interpret their speeches; and it is good to say little to them, and that which they least look for. In all negotiations of difficulty, a man may not look to sow and reap at once; but must prepare business, and so ripen it by degrees.
Of Negotiating. - Essays (1625)