All the progresses are the work of human thought. Science is to know the truth. Science is the most genuine guide in life." 
MUSTAFA KEMAL ATATÜRK

"Enlightenment is man's release from his self-incurred tutelage. Tutelage is man's inability to make use of his understanding without direction 
from another." 
Immanuel Kant

"The true value of a human being can be found in the degree to which he has attained liberation 
from the self."
Albert Einstein

"It's your road and yours alone. Others may walk it with you but no one can walk it for you."
Mevlana Jalal ad-Din Rumi

"Believe nothing no matter where you read it or who said it no matter if I have said it unless it agrees with your own reason and is conducive to the good and benefit of one and all."
Gautama Buddha