In mathematics, if I find a new approach to a problem, another mathematician might claim that he has a better, more elegant solution. In chess, if anybody claims he is better than I, I can checkmate him.

The process of making pieces in Chess do something useful (whatever it may be) has received a special name: it is called the attack. The attack is that process by means of which you remove obstructions.

If Steinitz continually took pains to discover combinations, the success or failure of his diligent search could not be explained by him as due to chance. Hence, he concluded that some characteristic, a quality of the given position, must exist that would indicate the success or the failure of the search before it was actually undertaken.

By positional play a master tries to prove and exploit true values, whereas by combinations he seeks to refute false values ... A combination produces an unexpected re-assessment of values.

Vanity should never tempt a player to engage in a combat at the risk of loss of health. It is bad enough to lose without the additional annoyance of paying doctors' bills.

I have added these principles to the law: get the Knights into action before both Bishops are developed

Education in Chess has to be an education in independent thinking and judging. Chess must not be memorized.