Leonhard Euler Quotes, Thoughts and images

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

For the sake of brevity, we will always represent this number 2.718281828459... by the letter e.

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

Now I will have less distraction.

Madam, I have come from a country where people are hanged if they talk.

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.

Transcendental [numbers], They transcend the power of algebraic methods.

After exponential quantities the circular functions, sine and cosine, should be considered because they arise when imaginary quantities are involved in the exponential.

A function of a variable quantity is an analytic expression composed in any way whatsoever of the variable quantity and numbers or constant quantities.