Intellectuals solve problems, geniuses prevent them.

Opinions about obviousness are to a certain extent a function of time.

Make everything as simple as possible, but not simpler.

The theory must not contradict empirical facts.

Thinking is to man what flying is to birds. Don’t follow the example of a chicken when you could be a lark.

Live life to the fullest. You have to color outside the lines once in a while if you want to make your life a masterpiece. Laugh some every day. Keep growing, keep dreaming, keep following your heart. The important thing is not to stop questioning.

I am an adherent of the ideal of democracy, although I well know the weaknesses of the democratic form of government. Social equality and economic protection of the individual appeared to me always as the important communal aims of the state. Although I am a typical loner in daily life, my consciousness of belonging to the invisible community of those who strive for truth, beauty, and justice has preserved me from feeling isolated.