Never think.

Whilst you were thinking about it, the guy next to you just jumped into the pool and saved that drowning boy. You worked yourself up thinking about the crowd waiting to hear you sing; other guy just went out and performed. You were thinking about the best way to enter the building; guy next to you just ran inside and saved that little girl. Your inability to act on impulse may lead to a long and healthy life; that man’s ability may result in an early death.  Yet, he will be the one remembered for longer. Funny how that works.

There are times to think, and times to act. Learn which is which.