A Chess Problem Is Simply

Real Mathematics Must Be Justified As Art If It Can Be Justified At All.

Chess Problems Are The Hymn-tunes Of Mathematics.

In [great Mathematics] There Is A Very High Degree Of Unexpectedness, Combined With Inevitability And Economy.

Greek Mathematics Is The Real Thing. The Greeks First Spoke A Language Which Modern Mathematicians Can Understand... So Greek Mathematics Is 'permanent', More Permanent Even Than Greek Literature.

Sometimes One Has To Say Difficult Things, But One Ought To Say Them As Simply As One Knows How.