Though you break your heart, men will go on as before.

Without a purpose, nothing should be done.

Letting go all else, cling to the following few truths. Remember that man lives only in the present, in this fleeting instant: all the rest of his life is either past and gone, or not yet revealed. This mortal life is a little thing, lived in a little corner of the earth; and little, too, is the longest fame to come - dependent as it is on a succession of fast-perishing little men who have no knowledge even of their own selves, much less of one long dead and gone.

Treat with utmost respect your power of forming opinions, for this power alone guards you against making assumptions that are contrary to nature and judgments that overthrow the rule of reason.

What springs from earth dissolves to earth again, and heaven-born things fly to their native seat.

Let goodness go with the doing.

We are born for synergy, just like the feet, just like the hands, just like the eyes, just like the rows of upper and lower teeth. Working against each other is unnatural, and being annoyed and turning one's back is counterproductive.