Immature love says: I love you because I need you. Mature love says: I need you because I love you.
Progress is impossible without change, and those who cannot change their minds cannot change anything.
To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.
Iteration, like friction, is likely to generate heat instead of progress.
The pest of society are the egotist, they are dull and bright, sacred and profane, course and fine. It is a disease that like the flu falls on all constitutions.
Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.