There is nothing without reason.

Take what you need, do what you should, you will get what you want.

Everything that is possible demands to exist.

Every present state of a simple substance is the natural consequence of its preceding state, in such a way that its present is big with its future.

Every mind has a horizon in respect to its present intellectual capacity but not in respect to its future intellectual capacity.

To love is to be delighted by the happiness of someone, or to experience pleasure upon the happiness of another. I define this as true love.

The greatness of a life can only be estimated by the multitude of its actions. We should not count the years, it is our actions which constitute our life.

Music is a hidden arithmetic exercise of the soul, which does not know that it is counting.

Imaginary numbers are a fine and wonderful refuge of the divine spirit almost an amphibian between being and non-being.

We may say, that not only the soul (the mirror of an indestructible universe) is indestructible, but also the animal itself is, although its mechanism is frequently destroyed in parts.

The present is saturated with the past and pregnant with the future.

No one is perfect and we all make mistakes, but not all of us admit to mistakes made.

I think women need kindness more than love. When one human being is kind to another it's a very deep matter.

To create something you want to sell, you first study and research the market, then you develop the product to the best of your ability.

I'm an amateur science enthusiast. I'm not even a professional enthusiast. I don't know anything; I never even passed biology in high school. But I read the science section of the newspaper.

If I had my life to live over, I would perhaps have more actual troubles but I'd have fewer imaginary ones.

My dream was to eventually make movies. To be part of the fairy tales, stories and novels I loved reading so much growing up.

Maybe all of these different possibilities exist at the same time, like each moment we live has a thousand other moments layered underneath it that look different.

Whatever you do, do it with intelligence, and keep the end in view.

The earliest form in which romances appear is that of a rude kind of verse.

If nobody loved, the sun would go out.