I have come to know the mutability of all human relationships and have learned to insulate myself against both heat and cold so that a temperature balance is fairly well assured.

Gravitation is not responsible for people falling in love.

Life is like riding a bicycle. To keep your balance, you must keep moving.

Life isn't worth living, unless it is lived for someone else.

Imagination is everything. It is the preview of life's coming attractions.

Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

Strive not to be a success, but rather to be of value.

The true sign of intelligence is not knowledge but imagination.

God is clever but not dishonest.

Try not to become a man of success but rather a man of value.

Weakness of attitude becomes weakness of character.

The essence of science is independent thinking, hard work, and not equipment. When I got my Nobel Prize, I had spent hardly 200 rupees on my equipment.

For the person and for the species love is the form of behavior having the highest survival value.

When you are a strong woman, you will attract trouble. When a man feels threatened, there is always trouble.

You have to come to the world of enlightenment with open hands, not clinched fists, without an agenda.

My blood is a miracle that, from my veins, crosses the air in my heart into yours.

I’m living now in my reward.

You look like a normal person, if you can find a normal person who wants to look like that.

...if I have ever met someone without a single shadow on their heart, it was surely a child too young for speaking.

America is, and always will be, a shining city on a hill.

Fire and fear, good servants, bad lords.