There is this difference between the grief of youth and that of old age; youth's burden is lightened by as much of it as another shares; old age may give and give, but the sorrow remains the same.
I feel myself driven towards an end that I do not know. As soon as I shall have reached it, as soon as I shall become unnecessary, an atom will suffice to shatter me. Till then, not all the forces of mankind can do anything against me.