Nature arms each man with some faculty which enables him to do easily some feat impossible to any other, and thus makes him necessary to society. ... Society can never prosper, but must always be bankrupt, until every man does that which he was created to do.
If you don't begin to be a revolutionist at the age of twenty, then at fifty you will be a most impossible old fossil. If you area red revolutionary at the age of twenty, you have some chance of being up-to-date when you are forty!