Romans 10:2 KJV
For I bear them record that they have a zeal of God, but not according to knowledge.
Proverbs 19:2 KJV
Also, that the soul be without knowledge, it is not good; and he that hasteth with his feet sinneth.
Rushing to do things without taking time to reflect on its effects in the long run is dangerous. Life is too short to be rushed through; the fact that one is moving fast does not mean one is moving ahead. “Take time for all things: great haste makes great waste” (Benjamin Franklin).