He who hasn't tasted bitter things hasn't earned sweet things.

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.

If you fuel your journey on the opinions of others, you are going to run out of gas.

One of the best kinds of thrill is defining, honoring, and achieving our goals.

For happiness, love is your only choice.

Have I told you I love you?" he whispers.I smile. "Not since this morning.""Unforgivable. I will tell you every hour of every day.

Here's to democracy. May we get the government we deserve.

Ah, what shall I be at fifty, should nature keep me alive, if I find the world so bitter when I am but twenty-five?

Art could be said to be a symbol of the universe, being linked with that absolute spiritual truth which is hidden from us in our positivistic, pragmatic activities.

Carrots might be good for my eyes, but they won't straighten out the curveball.

I do not give the honorific name of 'poetry' to the primitive and the unaccomplished.

The poet is the one who breaks through our habits.