There is no question climate change is happening. The only arguable point is what part humans are playing in it.
The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.
I've never known any trouble than an hour's reading didn't assuage.
One who deceives will always find those who allow themselves to be deceived.
Without courage, wisdom bears no fruit.
It has seemed to be more necessary to have regard to the weight of words rather than to their number.
By three methods we may learn wisdom: first, by reflection which is noblest; second, by imitation, which is the easiest; and third, by experience, which is the bitterest.
You are the bows from which your children as living arrows are sent forth.
One who loses wealth loses much. One who loses a friend loses more. But one who loses courage loses all.
Accuracy is the twin brother of honesty; inaccuracy, of dishonesty.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
The only way to get the best of an argument is to avoid it.
If you don't want to slip up tomorrow, speak the truth today.
Better mad with the rest of the world than wise alone.
Only from the heart can you touch the sky.
The most courageous act is still to think for yourself. Aloud.
We never see ourselves as others see us.
Everybody is ignorant, only on different subjects.
Be realistic: Plan for a miracle
To a wise and good man the whole earth is his fatherland.
Act as if the maxim of your action were to become through your will a general natural law
