Aphorisms was used as textbooks until the 19th century. The first and best-known aphorism, which serves as a kind of introduction to the book, runs as follows:
Life is short, Art long, Occasion sudden and dangerous, Experience deceitful, and Judgment difficult.
In the Aphorisms of Hippocrates, the term "aphorism"was first used. This book is a long series of propositions concerning the symptoms and diagnosis of disease and the art of healing and medicine.
In winter and spring the bowels are naturally the hottest, and the sleep most prolonged; at these seasons, then, the most sustenance is to be administered; for as the belly has then most innate heat, it stands in need of most food. The well-known facts with regard to young persons and the athletae prove this.