All birds need to fly are the right-shaped wings, the right pressure and the right angle.

It would be better for the true physics if there were no mathematicians on earth.

There is no philosophy which is not founded upon knowledge of the phenomena, but to get any profit from this knowledge it is absolutely necessary to be a mathematician.

We are all full of discourses that we only half understand and half mean.

Don’t be quick to get angry.

John Calvin called the Book of Psalms ‘an anatomy of all parts of the soul.’ All the range of emotions are expressed

Insanity hovered close at hand, like an eager waiter at an expensive restaurant.

The stars never lie, but the astrologers lie about the stars.

Act so that the maxim of your act could be made the principle of a universal law.

Pessimism is not only unwarranted, it is also a self-fulfilling prophecy. If you think the cause is lost, it will be. No one works hard for a cause they think will lose.

When you do something for world peace, peace among groups, peace among individuals, or your own inner peace, you improve the total peace picture.

I made things a lot harder than they needed to be out of fear and anxiety.

If the numbers we see in domestic violence were applied to terrorism or gang violence, the entire country would be up in arms, and it would be the lead story on the news every night.