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!
Our affections and beliefs are wiser than we; the best that is in us is better than we can understand; for it is grounded beyond experience, and guides us, blindfold but safe, from one age on to another.