In life the three acts are the whole drama; for what shall be a complete drama is determined by him who was once the cause of its composition, and now of its dissolution: but thou art not the cause of neither. Depart then satisfied; for he also who releases thee is satisfied.

If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any m…

Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.

If we begin with certainties, we shall end in doubts; if we begin with doubts, and are patient, we shall end in certainties.