Why idealism? Is it enough?

"Life is a balance between idealism and realism." - Peter Hook

"Idealism detached from action is just a dream. Allied with pragmatism, it is very strong." - Bono

"The acceptance of certain realities does not preclude idealism." - Rem Koolhaas

"If you didn't have some sense of idealism, then what is there to sustain you?" - James Carville

"Anyone driving social change...is going to be a contradictory mix of idealism and ego." - Riz Ahmed

"Ideas are great arrows, but there has to be a bow. Politics is the bow of idealism." - Bill Moyers