Love has the tendency of pressing together all the lights - all the rays emitted from the beloved object by the burning-glass of fantasy, - into one focus, and making of them one radiant sun without any spots.

Experiments are mediators between nature and idea.

When the boy begins to understand that the visible point is preceded by an invisible point, that the shortest distance between two points is conceived as a straight line before it is ever drawn with pencil and paper...the fountain of all thought has been opened to him...the philosopher can reveal him nothing new, as a geometrician he has discovered the basis of all thought.

The sum which two married people owe to one another defies calculation. It is an infinite debt, which can only be discharged through all eternity.

We should treat children as God does us, who makes us happiest when He leaves us under the influence of innocent delusions.

Let your trouble be Light will follow dark Though the heaven falls You may hear the lark.

The old lose one of the greatest privileges of man, for they are no longer judged by their contemporaries.