Concentrate your strengths against your competitor's relative weaknesses.

Art is either a plagiarist or a revolutionist.

By the combination of lines and colors, under the pretext of some motif taken from nature, I create symphonies and harmonies that represent nothing absolutely real in the ordinary sense of the word but are intended to give rise to thoughts as music does.

The single most powerful tool for winning a negotiation is the ability to get up and walk away from the table without a deal

But I owe something to Vincent, and that is, in the consciousness of having been useful to him, the confirmation of my own original ideas about painting. And also, at difficult moments, the remembrance that one finds others unhappier than oneself.

Stressing output is the key to improving productivity, while looking to increase activity can result in just the opposite.

It is the eye of ignorance that assigns a fixed and unchangeable color to every object; beware of this stumbling block.