Now a soldier's spirit is keenest in the morning; by noonday it has begun to flag; and in the evening, his mind is only on returning to camp.
Kill one, terrify a thousand.
Generally in war the best policy is to take a state intact; to ruin it is inferior to this.
To ... not prepare is the greatest of crimes; to be prepared beforehand for any contingency is the greatest of virtues.
He who knows his enemy and himself well will not be defeated easily.
There are not more than five primary colours, yet in combination they produce more hues than can ever been seen.