“Annihilation means, with the Buddhistical philosophy, only a dispersion of matter, in whatever form or semblance of form it may be; for everything that bears a shape was created, and thus must sooner or later perish, i. e., change that shape; therefore, as something temporary, though seeming to be permanent, it is but an illusion, Maya; for, as eternity has neither beginning nor end, the more or less prolonged duration of some particular form passes, as it were, like an instantaneous flash of lightning. Before we have the time to realize that we have seen it, it is gone and passed away for ever; hence, even our astral bodies, pure ether, are but illusions of matter, so long as they retain their terrestrial outline. The latter changes, says the Buddhist, according to the merits or demerits of the person during his lifetime, and this is metempsychosis. When the spiritual entity breaks loose for ever from every particle of matter, then only it enters upon the eternal and unchangeable Nirvana. He exists in spirit, in nothing; as a form, a shape, a semblance, he is completely annihilated, and thus will die no more, for spirit alone is no Maya, but the only REALITY in an illusionary universe of ever-passing forms.”

Source: Midnight's Children

Boisgeloup, winter 1934
Richard Friedenthal, (1963, pp. 257-258).
Quotes, 1930's, "Conversations avec Picasso," 1934–35

The Snow Leopard (1978)
Context: The ancient intuition that all matter, all “reality,” is energy, that all phenomena, including time and space, are mere crystallizations of mind, is an idea with which few physicists have quarreled since the theory of relativity first called into question the separate identities of energy and matter. Today most scientists would agree with the ancient Hindus that nothing exists or is destroyed, things merely change shape or form; that matter is insubstantial in origin, a temporary aggregate of the pervasive energy that animates the electron. … The cosmic radiation that is thought to come from the explosion of creation strikes the earth with equal intensity from all directions, which suggests either that the earth is at the center of the universe, as in our innocence we once supposed, or that the known universe has no center. Such an idea holds no terror for mystics; in the mystical vision, the universe, its center, and its origins are simultaneous, all around us, all within us, and all One.

Diary entry (1913), # 944; as quoted by Francesco Mazzaferro, in 'The Diaries of Paul Klee - Part Four', : Klee as an Expressionist and Constructivist Painter http://letteraturaartistica.blogspot.nl/2015/05/paul-klee-ev27.html
1911 - 1914

Source: Three Days Before the Shooting... (2010), p. 311.

The highest statement of cognition must be an expression of that fact which is the means and ground for all cognition, namely, the goal of the I.
Fichte Studies § 556

Vol. II: On Symbolical Algebra and its Applications to the Geometry of Position (1845) Ch. XV, p. 59
A Treatise on Algebra (1842)

Physics and Philosophy (1958)
Context: The equation of motion holds at all times, it is in this sense eternal, whereas the geometrical forms, like the orbits, are changing. Therefore, the mathematical forms that represent the elementary particles will be solutions of some eternal law of motion for matter. Actually this is a problem which has not yet been solved.<!-- p. 72