Truth must be repeated again and again, because error is constantly being preached round about.

We can most safely achieve truly universal tolerance when we respect that which is characteristic in the individual and in nations, clinging, though, to the conviction that the truly meritorious is unique by belonging to all of mankind.

For just when ideas fail, a word comes in to save the situation.

Nothing will change the fact that I cannot produce the least thing without absolute solitude.

Distance... is like futurity. A dim vastness is spread before our souls; the perceptions of our mind are as obscure as those of our vision... But alas! when we have attained our object, when the distant 'there' becomes the present 'here,' all is changed; we are as poor and circumscribed as ever, and our souls still languish for unattainable happiness.

Letters are among the most significant memorial a person can leave behind them.

Mysteries are not necessarily miracles.