"If a poor person envies a rich person, he is no better than the rich person."

"He stepped down, trying not to look long at her, as if she were the sun, yet he saw her, like the sun, even without looking."

"If one has no vanity in this life of ours, there is no sufficient reason for living."

"The only thing that we know is that we know nothing."

"Historians are like deaf people who go on answering questions that no one has asked them."

"Without knowing what I am and why I am here, life is impossible."

"The surest sign of the truth is simplicity and clarity."

"Art is a human activity having for its purpose the transmission to others of the highest and best feelings."

"The most difficult subjects can be explained to the most slow-witted man if he has not formed any idea of them already."

"To sin is a human business, to justify sins is a devilish business."

"Wealth brings a heavy purse; poverty, a light spirit."

"One of the first conditions of happiness is that the link between Man and Nature shall not be broken."

"Everything comes in time to him who knows how to wait."

"If you make it a habit not to blame others, you will feel the growth of the ability to love in your soul."

"A man is like a fraction whose numerator is what he is and whose denominator is what he thinks of himself."