Dutch philosopher.
"He was the foremost exponent of 17th-century Rationalism; wrote "Ethics Demonstrated with Geometrical Order," 1674."
If you want the present to be different from the past, study the past."
He alone is free who lives with free consent under the entire guidance of reason.
All excellent things are as difficult as they are rare.
"If facts conflict with a theory, either the theory must be changed or the facts."
"Fame has also this great drawback, that if we pursue it we must direct our lives in such a way as to please the fancy of men, avoiding what they dislike and seeking what is pleasing to them."