Show me three lines of the opening theory moves and I will prove to you that two of them are incorrect.

The most intelligent inspection of any number of fine paintings will not make the observer a painter, nor will listening to a number of operas make the hearer a musician, but good judges of music and painting may so be formed. Chess differs from these. The intelligent perusal of fine games cannot fail to make the reader a better player and a better judge of the play of others.

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.

In Chess, as it is played by masters, chance is practically eliminated.

An advantage could consist not only in a single important advantage but also in a multitude of insignificant advantages.

I believe in magic ... There is magic in the creative faculty such as great poets and philosophers conspicuously possess, and equally in the creative chessmaster.

Show me three variations in the leading handbook on the openings, and I will show you two of those three that are defective.