The very desire to seek the truth often causes people, who do not know how it should be sought correctly, to make judgements about things that they d… - René Descartes

To know what people really think, pay regard to what they do, rather than what they say.

that we conduct our thoughts along different ways, and do not fix our attention on the same objects.

Those in whom the faculty of reason is predominant, and who most skillfully dispose their thoughts with a view to render them clear and intelligible, are always the best able to persuade others of the truth of what they lay down, though they should speak only in the language of Lower Brittany, and be wholly ignorant of the rules of rhetoric; and those whose minds are stored with the most agreeable fancies, and who can give expression to them with the greatest embellishment and harmony, are still the best poets, though unacquainted with the art of poetry.