Requires Extraction

Famous quotes containing the words requires and/or extraction:

    No wealth can buy the requisite leisure, freedom, and independence which are the capital in this profession. It comes only by the grace of God. It requires a direct dispensation from Heaven to become a walker. You must be born into the family of the Walkers. Ambulator nascitur, non fit.
    Henry David Thoreau (1817–1862)

    Logic is the last scientific ingredient of Philosophy; its extraction leaves behind only a confusion of non-scientific, pseudo problems.
    Rudolf Carnap (1891–1970)