Progress During Quotes
- Medicine has made all its progress during the past fifty years. ... How many operations that are now in use were known fifty years ago?-they… — Mark Twain
- The central difficulty lies in the fact that all of the sciences have made such great progress during the last century that they have got… — H. L. Mencken
- Alcoholism, the opium habit and tobaccoism are a trio of poison habits which have been weighty handicaps to human progress during the last three centuries.… — John Harvey Kellogg