Quotes on Three Legs

Like a stool which needs three legs to be stable, mathematics education needs three components: good problems, with many of them being multi-step ones, a lot of technical skill, and then a broader view which contains the abstract nature of mathematics and proofs. One does not get all of these at once, but a good mathematics program has them as goals and makes incremental steps toward them at all levels.

Every winner needs to master three essential components of trading; a sound individual psychology, a logical trading system and good money management. These essentials are like three legs of a stool – remove one and the stool will fall, together with the person who sits on it.