The greatest friend of truth is Time, her greatest enemy is Prejudice, and her constant companion is Humility.

True friendship is like sound health; the value of it is seldom known until it is lost.

Nothing more completely baffles one who is full of trick and duplicity himself, than straight forward and simple integrity in another.

The soundest argument will produce no more conviction in an empty head than the most superficial declamation; as a feather and a guinea fall with equal velocity in a vacuum.

The art of declamation has been sinking in value from the moment that speakers were foolish enough to publish, and hearers wise enough to read.

None are so fond of secrets as those who do not mean to keep them; such persons covet secrets as a spendthrift covets money, for the purpose of circulation.

Much may be done in those little shreds and patches of time which every day produces, and which most men throw away.

Let those who would affect singularity with success first determine to be very virtuous, and they will be sure to be very singular.

Atheism is a system which can communicate neither warmth nor illumination, except from those fagots which your mistaken zeal has lighted up for its destruction.

Deliberate with caution, but act with decision and yield with graciousness, or oppose with firmness.

The study of mathematics, like the Nile, begins in minuteness but ends in magnificence.

You sound like you're mentally deficient. And possibly Chinese.

Better naive and fearless than smart and anxious.

You don't just luck into things. ... You build step by step whether it's friendships or opportunities.

I have faith, as I did when I announced my stem-cell decision in 2001, that science and ethics can coexist.

Self-esteem starts out as a personal blessing, but it becomes nothing less than an evolutionary force.

If I let them take away my demons, I'll have to give up what I've found.

A team doesn't win the championship if its players are working from different agendas.

It’s time for women to stop being politely angry.

Empathy: Emptying our mind and listening with our whole being

I'm not even sure who my audience is.