If I had not been discriminated against or had not suffered persecution, I would never have received the Nobel Prize.

Find first peace within yourself. Don't eat too much. Keep your brain active. Love.

The instruments, glassware, and chemical reagents necessary for my project were the same as my 19th-century predecessors had.

At 100, I have a mind that is superior - thanks to experience - than when I was 20.

As for the presence of large NGF [nerve growth factor] sources in snake venom and male genital organs, they may be conceived as instances of bizarre evolutionary gene expression.

Above all, don’t fear difficult moments. The best comes from them

My life has been enriched by excellent human relations, work and interests. I have never felt lonely.