Reserve your right to think, for even to think wrongly is better than not to think at all.

Life is an unfoldment, and the further we travel the more truth we can comprehend.

Fables should be taught as fables, myths as myths, and miracles as poetic fancies.

Educate the children and it will not be necessary to punish the men.

-- Pythagoras

The seeker after truth is not one who studies the writings of the ancients and, following his natural disposition, puts his trust in them, but rather the one who suspects his faith in them and questions what he gathers from them.

-- Ibn al-Haytham

The duty of the man who investigates the writings of scientists, if learning the truth is his goal, is to make himself an enemy of all that he reads.

-- Ibn al-Haytham

Fables should be taught as fables, myths as myths, and miracles as poetic fancies.

-- Hypatia

A great many people think they are thinking when they are merely rearranging their prejudices.

-- William James

Blue dye is extracted from the indigo plant, yet it is bluer than indigo itself.

-- Xunzi