"When superstition is allowed to perform the task of old age in dulling the human temperament, we can say goodbye to all excellence in poetry, in painting, and in music."

"If there is one realm in which it is essential to be sublime, it is in wickedness. You spit on a petty thief, but you can't deny a kind of respect for the great criminal."

"There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts reflection combines them experimentation verifies the result of that combination."

"Power acquired by violence is only a usurpation, and lasts only as long as the force of him who commands prevails over that of those who obey."

"Never underestimate the power of every step forward is a victory over stagnation."

"To our Palestinian neighbours, I assure you that we have a genuine intention to respect your right to live independently and in dignity. I have already said that Israel has no desire to continue to govern over you and control your fate."

"Passion is energy. Feel the power that comes from focusing on what excites you."

"I admired in others the strength that I lacked myself."