‘The energy of the mind is the essence of life.’ – Aristotle

‘Energy can't be created or destroyed, and energy flows. It must be in a direction, with some kind of internal, emotive, spiritual direction. It must have some effect somewhere.’ – Keanu Reeves

‘There is a vitality, a life force, an energy, a quickening, that is translated through you into action, and because there is only one of you in all time, this expression is unique.’ – Martha Graham

‘Our energy is in proportion to the resistance it meets. We attempt nothing great but from a sense of the difficulties we have to encounter; we persevere in nothing great but from a pride in overcoming them.’ – William Hazlitt

‘Each time a man stands up for an ideal, or acts to improve the lot of others, or strikes out against injustice, he sends forth a tiny ripple of hope, and crossing each other from a million different centers of energy and daring, those ripples build a current that can sweep down the mightiest walls of oppression and resistance.’ – Robert F Kennedy