Existence really is an imperfect tense that never becomes a present.
Friedrich Nietzsche
The irrationality of a thing is no argument against its existence, rather a condition of it.
That is the exploration that awaits you! Not mapping stars and studying nebula, but charting the unknown possibilities of existence.
Leonard Nimoy
Writing is such a solitary existence, and I can only do it late at night.
Paul O'Grady
My single-minded aim is to give existence to fantasy.
Claes Oldenburg
Our experiments not only proved the existence of a nervous apparatus in the above-mentioned glands, but also disclosed some facts clearly showing the... →
Ivan Pavlov
Theories of evolution must provide for the creative acts which brought such theories into existence.
Michael Polanyi
The particular features of the photographic method of detecting atomic particles enabled us to establish the existence of transient forms of matter... →
Cecil Frank Powell
The greatest writers of this age... are aware of the mystery of our existence.
J. B. Priestley
Russia does not have in its possession any trustworthy data that supports the existence of nuclear weapons or any weapons of mass destruction in Iraq... →
Vladimir Putin