Statistics are like women; mirrors of purest virtue and truth, or like whores to use as one pleases.

- Theodor Billroth

Keep your analysis pure and virtuous.

- Theodor Billroth

It is a most gratifying sign of the rapid progress of our time that our best text-books become antiquated so quickly.

- Theodor Billroth

Don't sugar-coat results. Don't make yourself look good when your strategy fails. Don't make others look good if their strategy failed.

- Theodor Billroth