Maximize the power of the beliefs that strengthen you and neutralize those that weaken you.

No intelligent man will ever be so bold as to put into language those things which his reason has contemplated.

The god, O men, seems to me to be really wise; and by his oracle to mean this, that the wisdom of this world is foolishness and of none effect.

All learning is in the learner, not the teacher.

I fear this is not the right exchange to attain virtue, to exchange pleasures for pleasures, pains for pains and fears for fears, the greater for the less like coins, but that the only valid currency for which all these things should be exchanged is wisdom.

We become what we contemplate.

The most beautiful motion is that which accomplishes the greatest results with the least amount of effort.