Our panel of 91 professional philosophers has responded to

31
 questions about 
Space
68
 questions about 
Happiness
39
 questions about 
Race
244
 questions about 
Justice
374
 questions about 
Logic
151
 questions about 
Existence
75
 questions about 
Beauty
117
 questions about 
Children
75
 questions about 
Perception
1280
 questions about 
Ethics
36
 questions about 
Literature
27
 questions about 
Gender
110
 questions about 
Biology
80
 questions about 
Death
124
 questions about 
Profession
221
 questions about 
Value
284
 questions about 
Mind
5
 questions about 
Euthanasia
208
 questions about 
Science
154
 questions about 
Sex
54
 questions about 
Medicine
2
 questions about 
Culture
77
 questions about 
Emotion
70
 questions about 
Truth
69
 questions about 
Business
58
 questions about 
Punishment
67
 questions about 
Feminism
170
 questions about 
Freedom
282
 questions about 
Knowledge
2
 questions about 
Action
574
 questions about 
Philosophy
4
 questions about 
Economics
51
 questions about 
War
218
 questions about 
Education
392
 questions about 
Religion
58
 questions about 
Abortion
287
 questions about 
Language
24
 questions about 
Suicide
96
 questions about 
Time
105
 questions about 
Art
88
 questions about 
Physics
23
 questions about 
History
89
 questions about 
Law
81
 questions about 
Identity
134
 questions about 
Love
110
 questions about 
Animals
43
 questions about 
Color
32
 questions about 
Sport
34
 questions about 
Music

Question of the Day

The syllogism in question is not valid. Nothing logically guarantees that the set of single girls and the set of sad girls overlap. Even if both sets have members, it does not follow that they have any members in common. Compare: Some polygons are squares. Some polygons are triangles. But it is false that some polygons are square triangles.