,Y qué es amor? ,Quién definió el amor? Amor definido deja de serlo…

True science teaches, above all, to doubt and to be ignorant.

Life is doubt,And faith without doubt is nothing but death.

Cásate con la mujer que te quiera, aunque no la quieras tú. Es mejor casarte para que le conquisten a uno el amor que para conquistarlo.

¡Hay que vivir! Y él me enseñó a vivir, él nos enseñó a vivir, a sentir la vida, a sentir el sentido de la vida, a sumergirnos en el alma de la montaña, en el...

Only he who attempts the absurd is capable of achieving the impossible.

El amor precede al conocimiento, y éste mata a aquél.

Our life is a hope which is continually converting itself into memory and memory in its turn begets hope.

At times to be silent is to lie. You will win because you have enough brute force. But you will not convince. For to convince you need to persuade. And in order to persuade you...

Pois o que sentira por sua mulher e a ela o cingia, via bem, agora que ela se fora, que se lhe chegou a confundir com o rotineiro da vida diária, que o respirara nas...

Science is a cemetery of dead ideas.

Those who believe that they believe in God, but without passion in their hearts, without anguish in mind, without uncertainty, without doubt, without an element of despair even in their consolation, believe only in the...

A pedant who beheld Solon weeping for the death of a son said to him, ‘Why do you weep thus, if weeping avails nothing?’ And the sage answered him, ‘Precisely for that reason—because it does...

Faith which does not doubt is dead faith. -Miguel de Unamuno, philosopher and writer (1864-1936)

It is sad not to love, but it is much sadder not to be able to love.

It is not usually our ideas that make us optimists or pessimists, but it is our optimism or pessimism that makes our ideas.

It is truer to say that martyrs create faith more than faith creates martyrs.

If it is nothingness that awaits us, let us make an injustice of it, let us fight against destiny, even without hope of victory.

Consciousness is a disease.

Sometimes, to remain silent is to lie, since silence can be interpreted as assent.

Faith which does not doubt is dead faith.

Man is said to be a reasoning animal. I do not know why he has not been defined as an affective or feeling animal. Perhaps that which differentiates him from other animals is feeling rather...

It is sad not to be loved but it is much sadder not to be able to love.

Yes, yes, I see it all! — an enormous social activity, a mighty civilization, a profuseness of science, of art, of industry, of morality, and afterwords, when we have filled the world with industrial marvels,...

The greatest height of heroism to which an individual, like a people, can attain is to know how to face ridicule.