There are few perfect things in the world, even they don't exist. There are many things in the world, which are really perfect precisely because of their shortcomings. Incomplete and broken things sometimes magically produce a great power to shock our hearts. Therefore, we should open our mind and let our life go, appreciate the perfect gift brought to us by defects.
The statement 'As long as you try your best, you don't care whether the result is perfect or not' is inaccurate in understanding the above paragraph.