Nature is a mutable cloud which is always and never the same.

There are many virtues in books, but the essential value is the adding of knowledge to our stock by the record of new facts, and, better, by the record of intuitions which distribute facts, and are the formulas which supersede all histories.

You cannot do a kindness too soon, for you never know how soon it will be too late.

Art is the path of the creator to his work.

As to methods, there may be a million and then some, but principles are few. The man who grasps principles can successfully select his own methods.

Honor and fortune exist for him who always recognizes the neighborhood of the great, always feels himself in the presence of high causes.

A man must ride alternately on the horses of his private and his public nature.