Permalink: Friedrich Nietzsche
The sentence is a summary of Nietzsche's idea that a person is not a finished thing but a task, and it is short enough to be a rule rather than a philosophy. Read literally it asks what you are still in the middle of becoming rather than what you have achieved.
Quotes that share a topic with this one.
Whatever you can do, or dream you can, begin it. Boldness has genius, power and magic in it.
The impediment to action advances action. What stands in the way becomes the way.
The fault, dear Brutus, is not in our stars, but in ourselves, that we are underlings.
The harder you work for something, the greater you will feel when you achieve it.