Calvin Coolidge : (5) " All growth depends upon activity. There is no development physically or intellectually without effort, and effort means work. " - Calvin Coolidge " To live under the American Constitution is the greatest political privilege that was ever accorded to the human race. " - Calvin Coolidge " Economy is the method by which we prepare today to afford the improvements of tomorrow. " - Calvin Coolidge " No nation ever had an army large enough to guarantee it against attack in time of peace, or ensure it of victory in time of war. " - Calvin Coolidge " When people are bewildered they tend to become credulous. " - Calvin Coolidge