Our civilized world is nothing but a great masquerade. You encounter knights, parsons, soldiers, doctors, lawyers, priests, philosophers and a thousand more: but they are not what they appear - they are merely masks... Usually, as I say, there is nothing but industrialists, businessmen and speculators concealed behind all these masks.

The greatest wisdom is to make the enjoyment of the present the supreme object of life; because that is the only reality, all else being merely the play of thought. On the other hand, such a course might just as well be called the greatest folly: for that which in the next moment exists no more, and vanishes utterly, like a dream, can never be worth a serious effort.

There is only one inborn erroneous notion ... that we exist in order to be happy ... So long as we persist in this inborn error ... the world seems to us full of contradictions. For at every step, in great things and small, we are bound to experience that the world and life are certainly not arranged for the purpose of maintaining a happy existence ... hence the countenances of almost all elderly persons wear the expression of ... disappointment.

To find out your real opinion of someone, judge the impression you have when you first see a letter from them.

Change alone is eternal, perpetual, immortal.

A high degree of intellect tends to make a man unsocial.

It is only when a man is alone that he is really free.