I think when you begin to think of yourself as having achieved something, then there's nothing left for you to work towards. I want to believe that there is a mountain so high that I will spend my entire life striving to reach the top of it. Cicely Tyson
Like dogs in a wheel, birds in a cage, or squirrels in a chain, ambitious men still climb and climb, with great labor, and incessant anxiety, but never reach the top. Robert Browning
Everyone, at any age, has talents that aren't fully developed-even those who reach the top of their profession. Garry Kasparov
People who reach the top of the tree are only those who haven't got the qualifications to detain them at the bottom. Peter Ustinov
Many have been led astray by the Qur'an: by clinging to that rope many have fallen into the well. There is no fault in the rope, O perverse man, for it was you who had no desire to reach the top. Rumi
Even if a mountain is high, there is always a way to reach the top -- and although the way might be full of danger, there is always a way for someone to get through it. Vietnamese Proverb