Carl Sagan Quote

If you know something only qualitatively, you know it no more than vaguely. If you know it quantitatively — grasping some numerical measure that distinguishes it from an infinite number of other possibilities — you are beginning to know it deeply.

Billions & Billions: Thoughts on Life and Death at the Brink of the, Millennium, Chapter 2 (p. 21)

If you know something only qualitatively, you know it no more than vaguely. If you know it quantitatively — grasping some numerical measure that...

If you know something only qualitatively, you know it no more than vaguely. If you know it quantitatively — grasping some numerical measure that...

If you know something only qualitatively, you know it no more than vaguely. If you know it quantitatively — grasping some numerical measure that...

If you know something only qualitatively, you know it no more than vaguely. If you know it quantitatively — grasping some numerical measure that...