Quote #9933
When I look back now over my life and call to mind what I...
Quote #138
Science is a mechanism, a way of trying to improve your knowledge of nature....
Quote #1641
In religion and politics people’s beliefs and convictions are in almost every case gotten...
Quote #9284
The important thing is not to stop questioning. Curiosity has its own reason for...
Quote #16858
Begin doing what you want to do now. We are not living in eternity....
Quote #19763
Weary the path that does not challenge. Doubt is an incentive to truth and...
Quote #6106
It has all been very interesting.
Quote #18030
But those rare souls whose spirit gets magically into the hearts of men, leave...
Quote #3949
The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect....
Quote #10869
Egotist a person more interested in himself than in me.