"We all, thank goodness, feel a natural spark of sympathy for the sufferings of others. We need to catch that spark an…"

"[M]oral value is based upon the individual’s experience of pain (defined broadly to cover all types of suffering whet…"

"The 1960s revolutions against racism, sexism and classism nearly missed out the animals. This worried me. Ethics and …"

"Differences in reaction to toxic substances vary considerably between species so that the value of these tests remain…"

"Sometimes captured from the great arboreal freedom of their jungle homes, monkeys are closely confined in cages only …"

"Our first moral concern should always be with the individual who is the maximum sufferer."

"… it is less imperatively my duty to give pleasure than it is to alleviate pain. If someone else is not actually suff…"

"It is always wrong to cause pain to A merely in order to increase the pleasure of B."

"Their experiences may be more simple than ours, but are they less intense? Perhaps a caterpillar’s primitive pain whe…"

"Misleading may be the claims that procedures [of animal testing] are carried out under anaesthesia. Restraining devic…"