The rarest and most valuable of all intellectual traits is the capacity to doubt the obvious.

A. Einstein 

In questions of sciences the authority of a thousand is not worth the humble reasoning of a single individual.

Galileo Galilei

Mathematicians have tried in vain to this day to discover  some order in the sequence of some prime numbers and we have reason to beleive  that  it is a mystery into which the human mind will never penetrate.

                                                                                                                      L. Fuler

Kör cehalet çirkefleştirir insanları

Suskunluğum asaletimdendir

Her lafa verecek bir cevabım var

Lakin bir lafa bakarım laf mı diye

Bir de söyleyene bakarım adam mı diye

                                    Mevlana

Bir soğan soyulurken yaşarıyorda gözler

Hazine soyulurken aldırmıyor  öküzler.

Abdullah Çağlayan