- Ludwig Wittgenstein (plato.standford.edu)
Considered by some to be the greatest philosopher of the 20th century, Ludwig Wittgenstein played a central, if controversial, role in mid-20th-century analytic philosophy. He continues to influence, and incur debate in, current philosophical thought in topics as diverse as logic and language, perception and intention, ethics and religion, aesthetics and culture, and even political thought. Furthermore, a central factor in investigating Wittgenstein’s works is the multifarious nature of the project of interpreting them; this leads to untold difficulties in the ascertainment of his philosophical substance and method.
- NGC 7331 (Wikipedia)
NGC 7331, also known as Caldwell 30, is an unbarred spiral galaxy about 40 million light-years (12 Mpc) away in the constellation Pegasus. It was discovered by William Herschel in 1784. NGC 7331 is the brightest galaxy in the field of a visual grouping known as the NGC 7331 Group of galaxies. In fact, the other members of the group, NGC 7335, 7336, 7337 and 7340, lie far in the background at distances of approximately 300–350 million light years.