...regrettable as it may seem to the idealist, the experience of history provides little warrant for the belief that real progress, and the freedom that makes progress possible, lies in unification. For where unification has been able to establish unity of ideas it has usually ended in uniformity, paralysing the growth of new ideas. And where the unification has merely brought about an artificial or imposed unity, its irksomeness has led through discord to disruption.

As has happened so often in history, victory had bred a complacency and fostered an orthodoxy which led to defeat in the next war.

Inflict the least possible permanent injury, for the enemy of to-day is the customer of the morrow and the ally of the future

If you wish for peace, understand war.

The art of the indirect approach can only be mastered, and its full scope appreciated, by study of and reflection upon the whole history of war. But we can at least crystallize the lessons into two simple maxims- one negative, the other positive. The first is that, in face of the overwhelming evidence of history, no general is justified in launching his troops to a direct attack upon an enemy firmly in position. The second, that instead of seeking to upset the enemy's equilibrium by one's attack, it must be upset before a real attack is, or can be successfully launched

The unexpected cannot guarantee success, but it guarantees the best chance of success.

The easiest and quickest path into the esteem of traditional military authorities is by the appeal to the eye, rather than to the mind. The `polish and pipeclay' school is not yet extinct, and it is easier for the mediocre intelligence to become an authority on buttons, than on tactics.