Sincerity is moral truth.

Originality is independence, not rebellion; it is sincerity, not antagonism.

Insincerity is always weakness; sincerity even in error is strength.

Sincerity is not only effective and honourable, it is also much less difficult than is commonly supposed.

Books minister to our knowledge, to our guidance, and to our delight, by their truth, their uprightness, and their art.

When a man fails to see the truth of certain generally accepted views, there is no law compelling him to provoke animosity by announcing his dissent.