“Without curiosity, all doors remain closed!”

“Good manners open the closed doors; bad manners close the open doors!”

“Doors to beautiful things do not remain open forever. Be fast to enter inside!”

“Loneliness opens the door for wisdom and wisdom opens all the doors!”

“If we had known everything in this universe, we would have had to find another universe to feed our curiosity, because what keeps alive man is the curiosity!”

“Our chair will remain empty one day, but our ideas will continue to sit on that chair! However in the very distant future, there will remain neither chair nor ideas! All will disappear!”

“As long as your curiosity is greater than your fear, you will move forward!”