Other people and things can stop you temporarily. You're the only one who can do it permanently.
-- Zig Ziglar

Failure will never overtake me if my determination to succeed is strong enough.
-- Og Mandino

When you know with absolute confidence that there is no choice but to succeed, then at that moment success becomes inevitable. Sometimes it is the lack of alternatives that forces us towards achieving what was previously impossible. If the only way forward involves tearing down a bridge behind you in order to build one in front of you, then you must have the faith and courage to do so. Be bold in your determination to succeed.