86 SECTIONAL ADDRESSES. 
whole-heartedly that they seem to regard it as a final disproof of Lamarck’s 
theory. But when we consider that in progressive evolution, as in the — 
development of the individual, increasing complexity of structure and 
localisation of functions is accompanied by co-ordination of the activities 
of all the parts, that differentiation and integration go together and the 
organism remains a unit, the so-called “inheritance of acquired characters’ 
seems no more unlikely in the most advanced Metazoa than in the simplest 
unicellular organisms ; and in some of these it has been proved. 
When I read Huxley’s essays as an undergraduate I was greatly 
impressed with his remark that ‘Suffer fools gladly’ was very good 
advice. If a man does not agree with you, try to find out why he thinks 
as he does; you may discover the weakness of your own position. We 
should not adopt theories as creeds and denounce other theories as heresies. 
We are more likely to make progress towards the solution of the problem 
of evolution if we keep open minds and take broad views. 
