All bad Literature rests upon imperfect insight, or upon imitation, which may be defined as seeing at second-hand.
Genius is rarely able to give any account of its own processes.
Imagination is not the exclusive appanage of artists, but belongs in varying degrees to all men.
Science is the systematic classification of experience.
Speak for yourself and from yourself, or be silent.
The discoverer and the poet are inventors; and they are so because their mental vision detects the unapparent, unsuspected facts, almost as vividly as ocular vision rests on the apparent and familiar.