Quote by Raymond Cattell
"Perseverance without purpose becomes mere stubbornness and wastes the precious resource of time."
More from Raymond Cattell
"Personality is that which permits a prediction of what a person will do in a given situation."
"Intelligence is the most important thing in life because it allows you to understand everything else."
"The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes of mind."
"Traits are not fixed; they are dynamic and can be measured and understood through scientific inquiry."