How can you learn and grow, when you feel you need to know it all to begin with? We are habituated to measure our success by external validation. For children, this may take the form of stickers, praise or grades at school. For us adults, it includes promotions, pay rises and positive feedback. Unfortunately, this external validation can undermine our capacity to learn and grow. (Image source: www.holidayssun.com; Puerto Banus at night)