Insincerity is always weakness sincerity even in error is strength.

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

Science is the systematic classification of experience.

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

It is unhappily true that much insincere Literature and Art, executed solely with a view to effect, does succeed by deceiving the public.

No man ever made a great discovery without the exercise of the imagination.

We must never assume that which is incapable of proof.

The true function of philosophy is to educate us in the principles of reasoning and not to put an end to further reasoning by the introduction of fixed conclusions.

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

To write much, and to write rapidly, are empty boasts. The world desires to know what you have done, and not how you did it.

Good writers are of necessity rare.

The sooner you make a mistake and learn to live with it, the better. You're not responsible for everything. You can't control the way things end up.

At one time I had given much thought to why men were so very rarely capable of living for an ideal. Now I saw that many, no, all men were capable of dying for one.

By associating with the cat, one only risks becoming richer.

Accidents happen all the time.

Every culture has contributed to maths just as it has contributed to literature. It's a universal language; numbers belong to everyone.

We try to keep the beautiful memories, but other things from the past creep up on us.

Advice to persons about to marry - don't

The corporate income tax, in particular, is a tax that puts American corporations at a disadvantage.

Education, awareness and prevention are the key, but stigmatisation and exclusion from family is what makes people suffer most

Just because the character listens to an iPod and wears black nail polish, she's goth. That was just a misused word