There is a difference between knowledge and wisdom.
Knowledge is knowing that a tomato is a fruit not a vegetable.
Wisdom is knowing not to include it in a fruit salad.
A mother, wishing to encourage her son's progress at the piano, bought tickets to a performance by the great Polish pianist Ignace Paderewski. When the evening arrived, they found their seats near the front of the concert hall and eyed the majestic Steinway waiting on the stage. Soon the mother found a friend to talk to, and the boy slipped away.
At eight o'clock, the lights in the auditorium began to dim, the spotlights came on, and only then did they notice the boy – up on the piano bench, innocently picking out "Twinkle, Twinkle Little Star." His mother gasped in shock and embarassment but, before she could retrieve her son, the master himself appeared on the stage and quickly moved to the keyboard.
He whispered gently to the boy, "Don't quit. Keep playing." Leaning over, Paderewski reached down with his left hand and began filling in the bass part. Soon his right arm reached around the other side and improvised a delightful obligato. Together, the old master and the young novice held the crowd mesmerized with their blended and beautiful music.
In all our lives, we receive helping hands – some we notice, some we don't. Equally we ourselves have countless opportunites to provide helping hands – sometimes we would like our assistance to be noticed, sometimes we don't. Little of what we all achieve is without learning from others and without support from others and what we receive we should hand out.