Albert A. Michelson 3 quotes
Albert Camus 173 quotes
Albert Einstein 462 quotes
Aldous Huxley 163 quotes
Aleksandr Pushkin 32 quotes
Alexander Graham Bell 22 quotes
André Weil 3 quotes
Angelina Jolie 5 quotes
Ann Druyan 4 quotes
Bart D. Ehrman 13 quotes
Bertrand Russell 480 quotes
Bill Gates 72 quotes
Brian Greene 6 quotes
C. V. Raman 21 quotes
Carl Sagan 209 quotes
Charles Darwin 155 quotes
Charles Péguy 12 quotes
Charlie Chaplin 28 quotes
Christian de Duve 1 quotes
Clarence Darrow 62 quotes
Conor Oberst 104 quotes
Dave Matthews 56 quotes
David Hilbert 27 quotes
Dick Cavett 5 quotes
Edward Snowden 34 quotes
Edward Teller 32 quotes
Edwin Hubble 7 quotes
Émile Durkheim 23 quotes
Enrico Fermi 12 quotes
Ford Madox Ford 16 quotes
Franz Schubert 2 quotes
George Clooney 4 quotes
George Lincoln Rockwell 21 quotes
George Santayana 63 quotes
Gustav Mahler 2 quotes
Hector Berlioz 9 quotes
Henry Cavendish 8 quotes
Henry Dunant 4 quotes
Henry Fonda 2 quotes
Henry Hazlitt 10 quotes
Herbert Spencer 69 quotes
Hermann von Helmholtz 10 quotes
Immanuel Kant 134 quotes
Ingmar Bergman 66 quotes
Irving Berlin 2 quotes
Jagadish Chandra Bose 28 quotes
Jawaharlal Nehru 56 quotes
Johannes Brahms 8 quotes
John Bardeen 1 quotes
John Curtin 1 quotes
John Lennon 101 quotes
John Stossel 4 quotes
John Strutt, 3rd Baron Rayleigh 4 quotes
John Stuart Mill 130 quotes
John Tyndall 10 quotes
John von Neumann 25 quotes
Jorge Luis Borges 152 quotes
Joseph Heller 74 quotes
Joseph Louis Lagrange 8 quotes
Karl Popper 70 quotes
Kenneth Burke 10 quotes
Kurt Vonnegut 265 quotes
Ludwig Wittgenstein 210 quotes
Marie Curie 14 quotes
Neil deGrasse Tyson 37 quotes
Neil Gaiman 86 quotes
Nikos Kazantzakis 173 quotes
Norbert Wiener 45 quotes
Norman Angell 47 quotes
Omar Khayyám 88 quotes
Paul Dirac 30 quotes
Piero Sraffa 2 quotes
Pierre-Simon Laplace 18 quotes
Robert G. Ingersoll 145 quotes
Robert Noyce 1 quotes
Robert Nozick 32 quotes
Robert Oppenheimer 34 quotes
Sadegh Hedayat 9 quotes
Salvador Dalí 60 quotes
Sidney Hook 9 quotes
Siméon Denis Poisson 2 quotes
Stan Lee 10 quotes
Stanislaw Ulam 35 quotes
Susan B. Anthony 24 quotes
Thomas Henry Huxley 128 quotes
Thomas Kuhn 13 quotes
W. E. B. Du Bois 41 quotes
Wallace Stevens 234 quotes
Warren Buffett 72 quotes
Wilhelm Reich 75 quotes
Yip Harburg 27 quotes