(Reply on what constitutes scientific proof:)"The question is much too difficult for me.

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.

No other woman had that air of spring in January, that ever-bubbling fount of love and hope.

She didn't want to alienate herself from the very wealthy man that was about to offer her a job by declining the polite offer of a drink.

Watching 'Girls' has just given me renewed courage.

Is there a doctor in the house? My parents want me to marry you.

Good literature makes your head throb heartlike

Everyone is complicated one way or another. But it's interesting to dig into a complicated character, to try to find that within yourself.

I was not always free from melancholy; but even melancholy had its charms.

If you have a vision and you are trying to accomplish something, you have to be competitive, or things are going to slip by you.

If you write your own tools, you can sort of see new things, design new things.

I deeply regret the damage which recent publicity has brought to the Labour Party. However, I reject any suggestion of intentional wrongdoing on my part.