Philippians 4:13

I can do all things (which He has called me to do) through Him who strengthens and empowers me (to fulfill His purpose-I am sufficient in Christ’s sufficiency; I am ready for anything and equal to anything through Him who infuses me with inner strength and confident peace.)

We were never designed to live our lives separate from God.  We will exhaust ourselves if we try to live this life only by our wisdom.  The wisdom of God is more infinite and all-knowing and it is why He is able to strengthen and empower us.  With God giving us direction, we will never be off course.