Don't wait for anything; simply because what you are waiting for may never come!

Help your brother; and as regards helping, everyone is your brother!

It is both theoretically and practically very impossible to have a happy ending in life as long as death exists.

History of science is a relay race, my painter friend. Copernicus took over his flag from Aristarchus, from Cicero, from Plutarch; and Galileo took that flag over from Copernicus.

Archimedes once said that 'Give me where to stand, and I will move the earth.' There is a much more difficult task than this: To try to lift an ignorant up from where he stands, because he is heavily chained to the stupidity!

A French proverb says 'Wait until it is night before saying that it has been a fine day.' To tell it more precise, wait till the clock strikes the midnight!

Just like sweeping the streets, sweep the unnecessary things from your mind too; keep your mind clean!