Final answer:
Francis Bacon believed that an intellectual attitude reliant on preconceived notions obstructed new scientific discoveries in his time.
Step-by-step explanation:
Francis Bacon believed that a certain intellectual attitude obstructed new scientific discoveries in his time. He argued that the prevailing intellectual attitude of his time, which relied heavily on preconceived notions and philosophical speculation, hindered scientific progress. Bacon believed that a more empirical and inductive approach, based on observation and experimentation, was necessary to unlock new knowledge and make scientific breakthroughs.