The sweltering summer of the Negro's legitimate discontent will not pass until there is an invigorating autumn of freedom and equality. Martin Luther King, Jr.
Madness is tonic and invigorating. It makes the sane more sane. The only ones who are unable to profit by it are the insane. Henry Miller
Don't you find that work, if you love it, is actually really invigorating? Cate Blanchett
Acting is invigorating. But I don't analyse it too much. It's like a dog smelling where it's going to do its toilet in the morning. Liam Neeson
The soul, cramped among the petty vexations of Earth, needs to keep its windows constantly open to the invigorating air of large and free ideas: and what thought is so grand as that of an ever-present God, in whom all that is vital in humanity breathes and grows? Lucy Larcom