History Is The Science Of People.

One Age Cannot Be Completely Understood If All The Others Are Not Understood. The Song Of History Can Only Be Sung As A Whole.

A Revolution Only Lasts Fifteen Years, A Period Which Coincides With The Effectiveness Of A Generation.

To Live Is To Feel Oneself Lost.

Love Is That Splendid Triggering Of Human Vitality The Supreme Activity Which Nature Affords Anyone For Going Out Of Himself Toward Someone Else.

We Need To Study The Whole Of History, Not To Fall Back Into It, But To See If We Can Escape From It.