We Say The Cows Laid Out Boston.

He Only Is Rich Who Owns The Day.

What I Must Do Is All That Concerns Me, Not What The People Think. This Rule, Equally Arduous In Actual And In Intellectual Life, May Serve For The Whole Distinction Between Greatness And Meanness.

When Life Has Been Well Spent, Age Is A Loss Of What It Can Well Spare,--muscular Strength, Organic Instincts, Gross Bulk, And Works That Belong To These. But The Central Wisdom, Which Was Old In Infancy, Is Young In Fourscore Years, And Dropping Off Obstructions, Leaves In Happy Subjects The Mind Purified And Wise.

The Greatest Discoveries Are Those That Shed Light Unto Ourselves.

The Lessons Of Science Should Be Experimental Also. The Sight Of A Planet Through A Telescope Is Worth All The Course On Astronomy; The Shock Of The Electric Spark In The Elbow Outvalues All Theories; The Taste Of The Nitrous Oxide, The Firing Of An Artificial Volcano, Are Better Than Volumes Of Chemistry.