Ideas are the source of all things.

Some suggestions for you :

The harder you work the luckier you get.

It is no good for rulers if the people they rule cherish ambitions for themselves or form strong bonds of friendship with one another.

The true creator is necessity, who is the mother of our invention.

The ruler who is good for anything ought not to beg his subjects to be ruled by him, although the present governors of mankind are of a different stamp.

When equality is given to unequal things, the resultant will be unequal...

Knowledge which is acquired under compulsion obtains no hold on the mind.

If a person does not attend to the meaning of terms as they are commonly used in argument, he may be involved even in greater paradoxes.

For the plan grows under the author's hand; new thoughts occur to him in the act of writing; he has not worked out the argument to the end before he begins.

For the extreme of injustice is to seem to be just when one is not.

The price of apathy towards public affairs is to be ruled by evil men.

Our object in the construction of the state is the greatest happiness of the whole, and not that of any one class.

Music and rhythm find their way into the secret places of the soul.

There will be no injustice in compelling our philosophers to have a care and providence of others; we shall explain to them that in other States, men of their class are not obligated to share in the toils of politics: and this is reasonable, for they grow up at their own sweet will, and the government would rather not have them.

I thought to myself: I am wiser than this man; neither of us probably knows anything that is really good, but he thinks he has knowledge, when he has not, while I, having no knowledge, do not think I have.