"Hear, O Israel! The Lord is our God, the Lord is one! You shall love the Lord your God with all your heart and with all your soul and with all your might. These words, which I am commanding you today, shall be on your heart. You shall teach them diligently to your sons and shall talk of them when you sit in your house and when you walk by the way and when you lie down and when you rise up. You shall bind them as a sign on your hand and they shall be as frontals on your forehead. You shall write them on the doorposts of your house and on your gates." --Devarim 6:4-9
"And how can you achieve such concentration? By recognizing that everything you do is important to God, and is one vital piece of the larger picture of your life." — Menachem Mendel Schneerson
"Peace can also be reached through concentration upon that which is dearest to the heart." — Patanjali
"Discipline and concentration are a matter of being interested." — Tom Kite
"By practicing concentration the mind can be made stable. A stable mind helps in taking right decisions and achieving the desired result." — Rig Veda
"If a man is called to be a street sweeper, he should sweep streets even as a Michaelangelo painted, or Beethoven composed music or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and earth will pause to say, ‘Here lived a great street sweeper who did his job well.’ "— Martin Luther King, Jr.
"Obstacles are things a person sees when he takes his eyes off his goal." — E. Joseph Cossman
"All the Woulda-Coulda-Shouldas, layin’ in the sun talkin’ ‘bout the things they Woulda-Coulda-Shoulda Done… But all those Woulda-Coulda-Shouldas all ran away and hid from One Little Did." — Shel Silverstein