Instead of decaying in a safe harbour, sail to the unsafe oceans!

The Sun and the science are the same; when they set down, the darkness comes!

If you can make your name and your works very famous and at the same time can succeed in making yourself much unknown, you are definitely the most intelligent celebrity!

To be pessimist is to amputate one's own legs and arms! Only an optimist man has the ability to move!

Stupid man produces noise; clever man produces silence!

When you become angry, you enter a tunnel, leaving the light behind you; when you get calm, you exit the tunnel, finding the light in front of you!

The tram can run over you only if you are on the tram way! The darkness can run over you only if you are on the ignorance way!