Logic is thinking based upon principle and is provable, factual, and as closely approaching exact truth as is possible for man to conceive. –Alfred J. Parker

Great spirits have always encountered violent opposition from mediocre minds. –Albert Einstein

The doctors of the future will give no medicine but will interest patients in the care of the human frame, in diet, and in the cause and prevention of disease. –Thomas A. Edison

The most profound saying to remember is, "A still tongue makes a wise head." Do much thinking before you do much talking. –Alfred J. Parker