That attitude does not exist so much today but in those days there was a very sharp distinction between basic physics and applied physics. Columbia did not deal with applied physics.

The greater the decrease in the social significance of an art form the sharper the distinction between criticism and enjoyment by the public. The conventional is uncritically enjoyed and the truly new is criticized with aversion.

There is nothing worse than a sharp image of a fuzzy concept.

The anger in the Brigade against those who fought the Republic in the rear was sharpened by reports of weapons even tanks being kept from the front and hidden for treacherous purposes.

The flame of anger bright and brief sharpens the barb of love.

Temper never mellows with age and a sharp tongue is the only edged tool that grows keener with constant use.

A tart temper never mellows with age and a sharp tongue is the only edged tool that grows keener with constant use.