Leonhard Euler

We are all part of something greater than ourselves.

The universe is a testament to God's power and glory.

The human spirit is resilient and capable of overcoming any challenge.

Mathematics is the foundation of all knowledge.

The greatest gift in life is to love and be loved.

God's grace is sufficient for us.

The more we understand the universe, the more we appreciate its complexity and beauty.

The human mind is a boundless ocean of thought and creativity.

For since the whole of geometry is founded on the most simple notions of magnitude, and these notions are so clear that they are grasped by the senses, it is not surprising that geometry has been cultivated with such success from the earliest times.

Although there are no quantities in the world which are truly infinite, we are nevertheless obliged to admit them in our calculations.

To the glory of God, I have discovered many things.

Since the fabric of the universe is most perfect and the work of a most wise Creator, nothing at all takes place in the universe in which some rule of maximum or minimum does not appear.

Although to penetrate into the intimate mysteries of nature and thence to learn the true causes of phenomena is not allowed to us, nevertheless it can happen that a certain fictive hypothesis may suffice for explaining many phenomena.

For I see with pleasure that you are applying yourself to the study of mathematics with great success. This science is the foundation of all others, and the one which leads most surely to the knowledge of truth.

The kind of knowledge which is supported only by observations and is not yet proved must be carefully distinguished from the truth; it is gained by induction, as we usually say. Yet we have seen cases in which mere induction led to error.

Nothing occurs in the world whose meaning is not that of some maximum or minimum.

I soon found an opportunity to be introduced to a famous professor Johann Bernoulli. ... True, he was very busy and so refused flatly to give me private lessons; but he gave me much more valuable advice to start reading more difficult mathematical books on my own and to study them as diligently as I could; if I came across some obstacle or difficulty, I was given permission to visit him freely every Saturday afternoon and he kindly explained to me everything I could not understand.

The study of mathematics is the indispensable basis for all intellectual and spiritual development.

Logic is the foundation of the certainty of all the knowledge we acquire.

To those who ask what the infinitely small quantity in mathematics is, we answer that it is actually zero. Hence there are not so many mysteries hidden in this concept as they are usually believed to be.