Seeking is a necessary preliminary to finding, and one who cannot endure the hardship of inquiry cannot expect to harvest the fruit… — John of Salisbury Copy Share Image
A study of the history of opinion is a necessary preliminary to the emancipation of the mind. — John Maynard Keynes Copy Share Image
A hypothetical theory is necessary, as a preliminary step, to reduce the expression of the phenomena to simplicity and order before it… — William John Macquorn Rankine Copy Share Image
