As the area of light expands, so does the perimeter of darkness.

I was just more stubborn and more passionate than most about physics.

Desire for approval and recognition is a healthy motive, but the desire to be acknowledged as better, stronger, or more intelligent than a fellow being or fellow scholar easily leads to an excessively egoistic psychological adjustment, which may become injurious for the individual and for the community.

Laws alone can not secure freedom of expression; in order that every man present his views without penalty there must be spirit of tolerance in the entire population.

Those who believe that politics and religion do not mix, understand neither.

Vegetarian food leaves a deep impression on our nature. If the whole world adopts vegetarianism, it can change the destiny of humankind.

It takes a different kind of thinking to solve a problem than the kind of thinking which produced the problem.