It's fine to celebrate success but it is more important to heed the lessons of failure.

Ambition is the last refuge of the failure.

Don't be afraid to fail. Don't waste energy trying to cover up failure. Learn from your failures and go on to the next challenge. It's OK to fail. If you're not failing, you're not growing.

We have forty million reasons for failure, but not a single excuse.

One of the common failings among honorable people is a failure to appreciate how thoroughly dishonorable some other people can be, and how dangerous it is to trust them.