Nature varies the seed according to the variety of the things she desires to produce in the world.

Just as eating against one's will is injurious to health, so studying without a liking for it spoils the memory, and it retains nothing it takes in.

You will never have a greater or lesser dominion than that over yourself...the height of a man's success is gauged by his self-mastery; the depth of his failure by his self-abandonment. ...And this law is the expression of eternal justice. He who cannot establish dominion over himself will have no dominion over others.

Just as a well-filled day brings blessed sleep, so a well-employed life brings a blessed death.

One's thoughts turn towards Hope.

He turns not back who is bound to a star.

The motive power is the cause of all life.