Reason deserves to be called a prophet; for in showing us the consequence and effect of our actions in the present, does it not tell us what the future will be?
Hence that general is skilful in attack whose opponent does not know what to defend; and he is skilful in defense whose opponent does not know what to attack.
If a traveller does not meet with one who is his better, or his equal, let him firmly keep to his solitary journey; there is no companionship with a fool.