The path of discovery is not a smooth one; it is often beset with difficulties and discouragements.
Smallpox vaccine
Found in 1 providers: grok
Cross Reference
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"This Inquiry will lay all those troublesome ghosts which have so long haunted the Metropolis with their ox-faces, & dismal hootings against Vaccination. However, tis all for the best – you may depend …"
Shocking"I have often thought that if mankind were more generally enlightened, they would be more virtuous."
Strange & Unusual"The greatest happiness consists in doing good to others."
Strange & Unusual"I have often wished that I had more time to devote to my favourite studies."
Strange & Unusual"Don't think; try."
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