We know the truth, not only by the reason, but also by the heart.
I have made this letter longer than usual because I lack the time to make it shorter.
Men never do evil so completely and cheerfully as when they do it from religious conviction.
Robert Hooke FRS was an English natural philosopher, architect and polymath. His adult life comprised three distinct periods: as a scientific inquirer lacking money; achieving great wealth and standing ... Wikipedia
Sir Isaac Newton PRS was an English mathematician, astronomer, and physicist who is widely recognised as one of the most influential scientists of all time and a key figure in the scientific revolution. Wikipedia
If I have seen further than others, it is by standing upon the shoulders of giants.
I can calculate the motion of heavenly bodies, but not the madness of people.
Tact is the knack of making a point without making an enemy.
John Wallis was an English mathematician who is given partial credit for the development of infinitesimal calculus. Between 1643 and 1689 he served as chief cryptographer for Parliament and, later, the royal court.Wikipedia