Our Famous Quotes by Author were chosen from over 19,000 Words of Wisdom.
These Inspiring Quotations are available online or through our Free Daily Quotes service.

A man who dares to waste an hour of time has not discovered the value of life.

A man's friendships are one of the best measures of his worth.

As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being, if it vary however slightly in any manner profitable to itself, under the complex and sometimes varying conditions of life, will have a better chance of surviving, and thus be naturally selected.

False views, if supported by some evidence, do little harm, for everyone takes a salutary pleasure in proving their falseness; and when this is done, one path towards error is closed and the road to truth is often at the same time opened.

I have called this principle, by which each slight variation, if useful, is preserved, by the term of Natural Selection.

In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection.

We must, however, acknowledge, as it seems to me, that man with all his noble qualities - still bears in his bodily frame the indelible stamp of his lowly origin.

Without speculation there is no good and original observation.