In the middle years of the nineteenth century there first became abundant in this strange world of ours a class of men, men tending for the most part to become elderly, who are called, and who are very properly called, but who dislike extremely to be called--"Scientists.

The path of social advancement is, and must be, strewn with broken friendships.

Losing your way on a journey is unfortunate. But, losing your reason for the journey is a fate more cruel.

I see knowledge increasing and human power increasing, I see everincreasing possibilities before life, and I see no limits set to it all. Existence impresses me as a perpetual dawn. Our lives, as I apprehend them, swim in expectation.

Looking at these stars suddenly dwarfed my own troubles and all the gravities of terrestrial life. I thought of their unfathomable distance, and the slow inevitable drift of their movements out of the unknown past into the unknown future.

Biologists can be just as sensitive to heresy as theologians.

I had just taken to reading. I had just discovered the art of leaving my body to sit impassive in a crumpled up attitude in a chair or sofa, while I wandered over the hills and far away in novel company and new scenes... My world began to expand very rapidly,... the reading habit had got me securely.