Man errs as long as he strives.

Nature is beneficent. I praise her and all her works. She is silent and wise. She is cunning, but for good ends. She has brought me here and will also lead me away. She may scold me, but she will not hate her work. I trust her.

As soon as any one belongs to a narrow creed in science, every unprejudiced and true perception is gone.

Miracle is the pet child of faith.

It is related of an Englishman that he hanged himself to avoid the daily task of dressing and undressing.

The real scholar learns how to evolve the unknown from the known, and draws near the master.

To be pleased with one's limits is a wretched state.