There is nothing so annoying as to have two people talking when you're busy interrupting.

December is the toughest month of the year. Others are July, January, September, April, November, May, March, June, October, August, and February.

If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed.

They all laid their heads together like as many lawyers when they are gettin' ready to prove that a man's heirs ain't got any right to his property.

In the laboratory there are no fustian ranks, no brummagem aristocracies; the domain of Science is a republic, and all its citizens are brothers and equals, its princes of Monaco and its stonemasons of Cromarty meeting, barren of man-made gauds and meretricious decorations, upon the one majestic level!

To stand still is to fall behind.

Methuselah lived to be 969 years old . You boys and girls will see more in the next fifty years than Methuselah saw in his whole lifetime.