Every Step Of Life Shows Much Caution

Whoever Makes It A Rule To Test Action By Thought, Thought By Action, Cannot Falter, And If He Does, Will Soon Find His Way Back To The Right Road.

Of All Thieves, Fools Are The Worst; They Rob You Of Time And Temper.

The History Of Science Is Science Itself; The History Of The Individual, The Individual.

The Highest Goal That Man Can Achieve Is Amazement.

A Correct Answer Is Like An Affectionate Kiss.