All great truths begin as blasphemies.

Science is always simple and profound. It is only half truths that are dangerous.

New opinions often appear first as jokes and fancies, then as blasphemies and treason, then as questions open to discussion, and finally as established truths.

An index is a great leveller.

The great advantage of a hotel is that it is a refuge from home life.

Great Britain and the United States are nations separated by a common language.